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V 1.326
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Background Attack Aftermath Evidence Misinformation Analysis Memorial

Phone Call Oddities

Alleged Anomalies of Phone Calls from Doomed Flights

Alleged oddities in the reported phone calls from the jetliners commandeered on 9/11/01 are frequently cited as evidence against the official story of the jetliners' hijacking. Canadian Professor A.K. Dewdney reported experiments suggesting that cell phone calls from aircraft flying above 10,000 feet are difficult or impossible. Dewdney also wrote that cascading is caused by a phone at several thousand feet of elevation being unable to distinguish which of several cellsites has the strongest signal, and that this causes the phone to repeatedly select a new channel and try again, possibly leading to a "network-wide breakdown." Claims that cell phone calls were impossible on 9/11 were bolstered by a news story in 2004 about a new system that supported quality in-flight cell phone service. 1  

The claim that Dewdney's experiments have any relevance to 9/11/01 is questionable for several reasons:

  • Most of the calls from the planes were apparently made from airphones, not cell phones.
  • Dewdney conducted his experiments over Toronto. Are cell phone networks in that area comparable to those in regions over which the doomed jetliners were flying?
  • Some or all of the cell phone calls were apparently made from low altitudes.

Various Anomalies

Other claims about the phone calls have to do with the calls themselves. Before critically evaluating the claims about cell phone calls, 9-11 Research highlighted the following alleged anomalies in the pattern and content of the calls, some originally noted in the book Painful Deceptions.

The final point is largely moot given the detailed accounting of calls released by publication of prosecution trial exhibits in the trial of Zacarias Moussaoui. Other alleged anomalies have ready explanations consistent with the calls being real. For example, it's entirely understandable that the passengers and flight attendants would want to make long phone calls to report events in as much detail as possible.


References

1. In-flight cell phones 'worked great' in test, USAToday, 7/19/04 [cached]

page last modified: 2009-06-14