iPHONE-3G

Apple - iPhone - Features - 3G:
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.

iPhone 3G uses a technology protocol called HSDPA (High-Speed Downlink Packet Access) to download data fast over UMTS (Universal Mobile Telecommunications System) networks. Email attachments and web pages load twice as fast on 3G networks as on 2G EDGE networks. 1 And since iPhone 3G seamlessly switches between EDGE, faster 3G, and even faster Wi-Fi, you always get the best speeds possible.

iPhone 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 already gives you mobile multitasking. But 3G technology lets you multitask in more places — without connecting via Wi-Fi. Since 3G networks enable simultaneous data and voice, you can talk on the phone while surfing the web, checking email, or using Maps. All from your 3G cellular network.

iPhone 3G delivers UMTS, HSDPA, GSM, Wi-Fi, EDGE, GPS, and Bluetooth 2.0 + EDR in one compact device — using only two antennas. Clever iPhone engineering integrates those antennas into a few unexpected places: the metal ring around the camera, the audio jack, the metal screen bezel, and the iPhone circuitry itself. And intelligent iPhone power management technology gives you up to 5 hours of talk time over 3G networks. 2 That's some of the best in the business.
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