en.wikipedia.org...
Much of what happened on the plane has been reconstructed from the many phone calls made by passengers and crew, mainly through onboard GTE airphones.
911research.wtc7.net...
There were numerous calls allegedly from Flight 93, most of them made using cell phones
www.post-gazette.com...
With him were others who placed cell-phone calls from the plane,
www.physics911.net...
If the hijackings of September 11 were staged, the organization responsible would also be sure to add other elements to the basic plan, not only developing lists of hijackers, but sending fake cellphone calls from some of the passengers. The following analysis focuses on Flight 93, from which more alleged cellphone calls were made than from the other three flights combined.
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Any analysis of the cellphone and “airfone” calls from Flight 93 must begin with some basic, high-altitude cellphone facts. According to AT&T spokesperson Alexa Graf, cellphones are not designed for calls from the high altitudes at which most airliners normally operate. It was, in her opinion, a “fluke” that so many calls reached their destinations. (Harter 2001) In the opinion of a colleague of mine who has worked in the cellphone industry, it was a “miracle” that any of the calls got through from altitude. (See the recent proposal to install equipment to make cellphone calls possible from aircraft.) An aircraft, having a metal skin and fuselage, acts like a Faraday cage, tending to block or attenuate electromagnetic radiation. One can make a cellphone call from inside an aircraft while on the ground because the weakened signal is still close enough to the nearest cellsite (relay tower) to get picked up. Once above 10,000 feet, however, calls rarely get through, if ever.
[edit on 24-3-2007 by mirageofdeceit]

