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  2. Satellite emergency notification device - Wikipedia

    en.wikipedia.org/wiki/Satellite_emergency...

    A Satellite Emergency Notification Device or SEND is a portable emergency notification and locating device which uses commercial satellite systems rather than the COSPAS-SARSAT satellite system. An example of this device is SPOT. The devices use an internal GPS chip to gather location information. When the SEND is triggered, this information is ...

  3. SPOT Satellite Messenger - Wikipedia

    en.wikipedia.org/wiki/SPOT_Satellite_Messenger

    SPOT 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 of ...

  4. 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.

  5. 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.

  6. Text messaging - Wikipedia

    en.wikipedia.org/wiki/Text_messaging

    Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two or more users of mobile devices, desktops/laptops, or another type of compatible computer. Text messages may be sent over a cellular network or may also be sent via satellite or Internet ...

  7. Emergency communication system - Wikipedia

    en.wikipedia.org/wiki/Emergency_Communication_System

    A private communication device is a device that is designed to deliver a communication to one person at a time through a single process. Typically, a single person is in control of such a device which is usually not shared. Examples include a cell phone, a text message on the cell phone, an email, or a message over a 2-way radio.

  8. Starlink - Wikipedia

    en.wikipedia.org/wiki/Starlink

    Cell coverage will begin with text messaging and expand to include voice and limited data services later, with testing to begin in 2024. T-Mobile plans to connect to Starlink satellites via existing mobile devices, unlike previous generations of satellite phones, which used specialized radios, modems, and antennas to connect to satellites in ...

  9. Telex - Wikipedia

    en.wikipedia.org/wiki/Telex

    Telex. Telex is a telecommunication service that provides text-based message exchange over the circuits of the public switched telephone network or by private lines. The technology operates on switched station-to-station basis with teleprinter devices at the receiving and sending locations. [1]

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