| http://www.w3.org/ns/prov#value | - Many airlines outside the U.S. already allow cellular use over onboard picocells, and they say those services are used mostly for text and data.Even as U.S. airlines have installed onboard Wi-Fi networks that might be able to carry VoIP (voice over Internet Protocol) services such as Skype, they have retained their own prohibitions on voice calls in flight.
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