18.06.2009 22:50 Uhr, Quelle: MacNN

AT&T using 802.21 for handoff of iPhones to Wi-Fi?

AT&T may be adapting a new protocol to relieve pressure on its 3G network, reports say. The 802.21 protocol may be responsible for the new prompt-free process of automatically transitioning an iPhone from 3G to one of AT&T's Wi-Fi hotspots. The technology is designed to switch to and from cellular, Wi-Fi, Bluetooth, 802.11 and 802.16 networks using handover algorithms.

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