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  2. Iridium satellite constellation - Wikipedia

    en.wikipedia.org/wiki/Iridium_satellite...

    The Iridium system was designed to be accessed by small handheld phones, the size of a cell phone. While "the weight of a typical cell phone in the early 1990s was 10.5 ounces" [6] (300 grams) Advertising Age wrote in mid 1999 that "when its phone debuted, weighing 1 pound (453 grams) and costing $3,000, it was viewed as both unwieldly and expensive."

  3. Satellite phone - Wikipedia

    en.wikipedia.org/wiki/Satellite_phone

    Satellite phone (Inmarsat) in use in Nias, Indonesia, in April 2005 after the Nias–Simeulue earthquake. A satellite telephone, satellite phone or satphone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do.

  4. Pager - Wikipedia

    en.wikipedia.org/wiki/Pager

    Pager. A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. [2]

  5. 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 ...

  6. SPOT Satellite Messenger - Wikipedia

    en.wikipedia.org/wiki/SPOT_Satellite_Messenger

    SPOT Gen3 Satellite Messenger. SPOT is a GPS tracking device that uses the Globalstar satellite network [1] to provide text messaging and GPS tracking (depending on the subscription type purchased). [2][3] It has a coverage area that includes a large portion of the planet, with the exception of extreme northern and southern latitudes and parts ...

  7. History of telecommunication - Wikipedia

    en.wikipedia.org/wiki/History_of_telecommunication

    The history of telecommunication began with the use of smoke signals and drums in Africa, Asia, and the Americas. In the 1790s, the first fixed semaphore systems emerged in Europe. However, it was not until the 1830s that electrical telecommunication systems started to appear. This article details the history of telecommunication and the ...

  8. Globalstar - Wikipedia

    en.wikipedia.org/wiki/Globalstar

    In late 2007, Globalstar subsidiary SPOT LLC launched a handheld satellite messaging and tracking personal safety device known as the SPOT Satellite Messenger.SPOT X, a two-way satellite messenger with GPS location tracking, navigational capabilities, social media linking and direct communication options to emergency services, was launched in 2018.

  9. Iridium Communications - Wikipedia

    en.wikipedia.org/wiki/Iridium_Communications

    These devices can send and receive text messages with any cell phone number, email address or another inReach device, as well as to provide location sharing, navigation and direct communication options to emergency services. ZOLEO satellite communicator uses global Iridium network when cellular or Wi-Fi coverage is unavailable.

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