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  2. Communication during the September 11 attacks - Wikipedia

    en.wikipedia.org/wiki/Communication_during_the...

    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. Alexa Graf, an AT&T spokesperson, said it was almost a fluke that the calls reached their destinations.

  3. Top US carriers say roaming customers facing ... - AOL

    www.aol.com/news/top-us-carriers-roaming...

    In statements to Reuters, Verizon, AT&T and T-Mobile US said they were working to resolve the issue but did not provide details on the extent of the outage or the services partner responsible for it.

  4. Live scan - Wikipedia

    en.wikipedia.org/wiki/Live_scan

    Live scan. Live scan fingerprinting refers to both the technique and the technology used by law enforcement agencies and private facilities to capture fingerprints and palm prints electronically, without the need for the more traditional method of ink and paper. [1] In the United States, most law enforcement agencies use live scan as their ...

  5. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on the normal plan position indicator radar display. The length of the line usually ...

  6. Biden warns ‘we’re up against extremism’ in video marking ...

    www.aol.com/biden-warns-against-extremism-video...

    The Biden campaign on Monday launched a full-fledged push to highlight two years since the Supreme Court overturned Roe v. Wade, highlighted by a video in which President Biden cites former ...

  7. Secretly recorded phone calls and carefully worded denials ...

    www.aol.com/news/secretly-recorded-phone-calls...

    Davidson denied any “extraction” of money from Sheen, instead maintaining that there were “valid settlements executed.”. He also asked Davidson whether he had used the words “leverage ...

  8. Distress signal - Wikipedia

    en.wikipedia.org/wiki/Distress_signal

    A distress signal, also known as a distress call, is an internationally recognized means for obtaining help. Distress signals are communicated by transmitting radio signals, displaying a visually observable item or illumination, or making a sound audible from a distance. A distress signal indicates that a person or group of people, watercraft ...

  9. Radio scanner - Wikipedia

    en.wikipedia.org/wiki/Radio_scanner

    Radio scanner. A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. The term scanner generally refers to a communications ...