3G technology gives iPhone fast access to the Internet and email over cellular networks around the world. iPhone 3G also makes it possible to do more in more places: Surf the web, download email, get directions, and watch video - even while you're on a call.Phone 3G meets worldwide standards for cellular communications, so you can make calls and surf the web from practically anywhere on the planet. And if you're in an area without a 3G network, iPhone connects you via GSM for calls and EDGE for data.
iPhone system
iPhone system