Install NathTel on your iPhone, iPod touch or iPad. Make and receive phone calls with crystal clear sound quality, either FREE or at super low rates. NathTel is easy to download and use. NathTel allows you to make and receive phone calls over 3G and WiFi, even when you don't have a cell signal. You can make calls almost anywhere in the world when the technology is available, and you can have FREE calls between all NathTel subscribers. Save on your long distance costs and take advantage of free to air internet or your data package to save even more on your airtime while making local calls (available for USA and Canadian subscribers).After your download and install NathTel, you should sign-up at http://nathtel.com/iphone upon registration we will provide you with a unique NathTel number which you can use to connect to all other NathTel members absolutely free. Features at a glance:- Compatible with the iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4s, iPad and iPod Touch.- VoIP via Wi-Fi & 3G- Access to your NathTel contact list- Call history- Return calls from your call history- Check your account balance by dialing 101- Hands-free calling You may use NathTel to place and receive calls over your provider's cellular data network. Please make sure your provider allows you to do so. NathTel is not liable for any violations of the agreement between you and your provider. Please also familiarize yourself with your providers data rates, prior to using this service. The quality of VoIP calls may vary depending on the performance of the mobile data network you are using.