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  2. Signal (software) - Wikipedia

    en.wikipedia.org/wiki/Signal_(software)

    Signal uses mobile telephone numbers to register and manage user accounts, though configurable usernames were added in March 2024 to allow users to hide their phone numbers from other users. [22] After removing support for SMS on Android in 2023, [23] [24] the app now secures all communications with end-to-end encryption. The client software ...

  3. History of mobile phones - Wikipedia

    en.wikipedia.org/wiki/History_of_mobile_phones

    Enabling technology for mobile phones was first developed in the 1940s but it was not until the mid-1980s that they became widely available. By 2011, it was estimated in Britain that more calls were made using mobile phones than wired devices. [1] The history of mobile phones covers mobile communication devices that connect wirelessly to the ...

  4. List of mobile phone brands by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_phone...

    Germany. AEG. BenQ Mobile. Bankruptcy in 2006, defunct in 2007. Grundig Mobile. Hagenuk Telecom GmbH. insolvency in 1997, mobile phone development and manufacturing business acquired by Telital in 1998 [9] Siemens Mobile. Acquired by BenQ Corporation in 2005 to form BenQ Mobile.

  5. Comparison of user features of messaging platforms - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_user...

    SMS. SMS (short message service) is a text messaging service component of most telephone, Internet, and mobile device systems. It uses standardized communication protocols to enable mobile devices to exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.

  6. Visible by Verizon - Wikipedia

    en.wikipedia.org/wiki/Visible_by_Verizon

    Visible Service LLC, doing business as Visible by Verizon, and known simply as Visible, is an American all-digital prepaid mobile virtual network operator (MVNO) and brand wholly-owned by Verizon. Launched in 2018, the carrier offers services on the Verizon network , with all services delivered via e-commerce and mobile apps , and no brick and ...

  7. Mobile phone - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone

    A mobile phone or cell phone[a] is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone (landline phone). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides ...

  8. Cell Broadcast - Wikipedia

    en.wikipedia.org/wiki/Cell_Broadcast

    Cell Broadcast messaging was first demonstrated in Paris in 1997. Some mobile operators used Cell Broadcast for communicating the area code of the antenna cell to the mobile user (via channel 050), [4] for nationwide or citywide alerting, weather reports, mass messaging, location-based news, etc. Cell broadcast has been widely deployed since 2008 by major Asian, US, Canadian, South American ...

  9. Donald Trump Wisconsin campaign visit in Prairie du Chien on ...

    www.aol.com/news/donald-trump-wisconsin-campaign...

    Those interested in attending can register for tickets. Each registrant is limited to two tickets per mobile phone number – and all tickets will be doled out on a first come, first served basis.

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