The recording above is from the 9/11 Commission. During the public hearing on 27 Jan 2004, the panel played a recording of flight attendant Betty Ong, who was on Flight 11. Around 8:20 AM on 9/11, Ong called the American Airlines reservation desk to tell them what was happening. She spoke with Nydia Gonzalez, an operations specialist.
Although Ong talked for 23 minutes, the recording is only 4-1/2 minutes long. The head of the Commission, Thomas Kean, said: "We'll hear the entire four and a half minutes that was recorded on that call." Thus, though Ong talked for 23 minutes, we're told that only one-quarter of the call was recorded. Whether or not this is the case, this recording is all we have in the public domain right now.
The second call on this audio file is made by Gonzalez to American Airlines' control center. Kean says that this call lasted 20 minutes but was edited to four minutes.
A transcript of the recording is below. A full transcript of the day's entire hearing is here.Tapes and transcrips here:
http://www.thememoryhole.org/911/911-ong-tape.htm