With FMC, the cellular, WLAN and wireline networks can be treated as one by the IP system. The main routes are carrier hosted, with the integration being carried out by either a carrier in control of both wired and wireless networks and applications (from this year, IP Multimedia Subsystem will ease this task at the server side); Unlicensed Mobile Access, which connects various types of access point (Wi-Fi, cellular etc) to the core network in a common way; or femtocells, tiny base stations that are backhauled by the wireline network and support FMC using standard interfaces to the core.
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