WD> Those cellphone conversations never happened. Technically impossible at
 WD> that time. GSM yes, North America no.

We saw the live reports of the twin towers falling and the attack on the
Pentagon by those who had commandeered flight 93.. and yes everyone later found
out about the 3 passengers who did indeed try to stop the hijackers. There are
transcripts of all this, I'm sure you can find them online.. here's one link:
SEPT. 11, 2002 NYTimes report:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=14&cad=rja&uact=8
&ved=0ahUKEwj-w_y8n_7aAhWlrVkKHeRiD48QFgiHATAN&url=https%3A%2F%2Fwww.nytimes.co
m%2F2002%2F09%2F11%2Fus%2Fflight-93-refusing-to-give-in-without-a-fight.html&us
g=AOvVaw3ebTlV3653jiaMJlf6MKla

or
https://tinyurl.com/y95m9uh7

Also:

[...]
"Cell phones and in-plane credit card phones played a major role during and
after the attack, starting with hijacked passengers who called family or
notified the authorities about what was happening. Passengers and crew who made
calls include: Sandra Bradshaw, Todd Beamer, Tom Burnett, Mark Bingham, Peter
Hanson, Jeremy Glick, Barbara K. Olson, Renee May, Madeline Amy Sweeney, Betty
Ong, Robert Fangman, Brian David Sweeney, and Ed Felt. Innocent occupants
aboard United Airlines Flight 93 were able to assess their situation based on
these conversations and plan a revolt that resulted in the aircraft crashing.
According to the commission staff: "Their actions saved the lives of countless
others, and may have saved either the U.S. Capitol or the White House from
destruction."[4]

According to the 9/11 Commission Report, 13 passengers from Flight 93 made a
total of over 30 calls to both family and emergency personnel (twenty-two
confirmed air phone calls, two confirmed cell phone and eight not specified in
the report). Brenda Raney, Verizon Wireless spokesperson, said that Flight 93
was supported by several cell sites.[5] There were reportedly three phone calls
from Flight 11, five from Flight 175, and three calls from Flight 77. Two calls
from these flights were recorded, placed by flight attendants: Betty Ong on
Flight 11 and CeeCee Lyles on Flight 93 [6] Alexa Graf, an AT&T spokesperson,
said it was almost a fluke that the calls reached their destinations.[5] Marvin
Sirbu, professor of Engineering and Public Policy at Carnegie Mellon University
said on September 14, 2001, that "The fact of the matter is that cell phones
can work in almost all phases of a commercial flight."[7] Other industry
experts said that it is possible to use cell phones with varying degrees of
success during the ascent and descent of commercial airline flights.[7]

After each of the hijacked aircraft struck the World Trade Center, people
inside the towers made calls to family and loved ones; for the victims, this
was their last communication. Other callers directed their pleas for help to
9-1-1. Over nine hours of the 9-1-1 calls were eventually released after
petitioning by The New York Times and families of the WTC victims. In 2001,
cell phones did not yet have texting or photography capabilities that came by
the mid-2000s."
[...]
References:
[...]
4. Lewis, Carol Weiss; Stuart Gilman (2005-03-11). The ethics challenge in
public service: a problem-solving guide. John Wiley & Sons. ISBN 9780787967567.
5. Betsy Harter (November 1, 2001). "Final Contact". Telephony Online. 6.
Summers, Anthony; Swan, Robbyn (2011). The Eleventh Day: The Full Story of 9/11
and Osama bin Laden. New York: Ballantine. pp. 113-,476n. ISBN 978-1400066599.
7. Romero, Simon (September 14, 2001). "After the Attacks: Communications; New
Perspective on the Issue Of Cell Phone Use in Planes". The New York Times.
Retrieved July 8, 2009. "According to industry experts, it is possible to use
cell phones with varying success during the ascent and descent of commercial
airline flights, although the difficulty of maintaining a signal appears to
increase as planes gain altitude." [...]

--- BBBS/Li6 v4.10 Toy-3