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  2. Phreaking - Wikipedia

    en.wikipedia.org/wiki/Phreaking

    Phreaking is a slang term coined to describe the activity of a culture of people who study, experiment with, or explore telecommunication systems, such as equipment and systems connected to public telephone networks. [ 1] The term phreak is a sensational spelling of the word freak with the ph- from phone, and may also refer to the use of ...

  3. Mobile device forensics - Wikipedia

    en.wikipedia.org/wiki/Mobile_device_forensics

    Mobile device forensics is a branch of digital forensics relating to recovery of digital evidence or data from a mobile device under forensically sound conditions. The phrase mobile device usually refers to mobile phones; however, it can also relate to any digital device that has both internal memory and communication ability, including PDA devices, GPS devices and tablet computers.

  4. History of videotelephony - Wikipedia

    en.wikipedia.org/wiki/History_of_videotelephony

    [67] [68] The camera phone was the same size as similar contemporary mobile phones, but sported a large camera lens and a 5 cm (2 inch) colour TFT display capable of displaying 65,000 colors, and was able to process two video frames per second. The 155 gram (5.5 oz.) camera could also take 20 photos and convey them by e-mail, with the camera ...

  5. 1-800-FREE-411 - Wikipedia

    en.wikipedia.org/wiki/1-800-FREE-411

    Service. Callers dial 1-800 (888 or 866)-FREE411 [373-3411] from any phone in the United States to use the toll-free service. Sponsors cover part of the service cost by playing advertising messages during the call. Callers always hear an ad at the beginning of the call, and then another after they have made their request.

  6. Add, replace or remove AOL account recovery info - AOL Help

    help.aol.com/articles/add-or-update-aol-account...

    Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care. Find out how to add or delete a recovery mobile phone number or alternate email address from your AOL account.

  7. Blue box - Wikipedia

    en.wikipedia.org/wiki/Blue_box

    Blue box designed and built by Steve Wozniak and sold by Steve Jobs before they founded Apple. Displayed at the Powerhouse Museum, from the collection of the Computer History Museum [ 1] A blue box is an electronic device that produces tones used to generate the in-band signaling tones formerly used within the North American long-distance ...

  8. Backhaul (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Backhaul_(telecommunications)

    In a hierarchical telecommunications network, the backhaul[ 1] portion of the network comprises the intermediate links between the core network, or backbone network, and the small subnetworks at the edge of the network (like for example private networks, LANs, etc. [citation needed] ). The most common network type in which backhaul is ...

  9. Mobile phones on aircraft - Wikipedia

    en.wikipedia.org/wiki/Mobile_phones_on_aircraft

    The cell phone calls are routed via satellite to the ground network and an on-board EMI screening system prevents the cell phones from attempting to contact ground-based networks. [ 44 ] These systems are comparatively easy to implement for customers in most of the world where GSM phones operating on one of just two bands are the norm.

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