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2. Short-range device - Wikipedia

   en.wikipedia.org/wiki/Short-range_device

   A short-range device ( SRD ), described by ECC Recommendation 70-03, is a radio-frequency transmitter device used in telecommunication that has little capability of causing harmful interference to other radio equipment. Short-range devices are low-power transmitters, typically limited to 25–100 mW effective radiated power (ERP) or less ...

3. SMS - Wikipedia

   en.wikipedia.org/wiki/SMS

   An SMS message written on a Motorola Razr V3. E.161, a common mobile keypad alphabet layout. Short Message/Messaging Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile devices exchange short text messages.

4. Text messaging - Wikipedia

   en.wikipedia.org/wiki/Text_messaging

   The word "lol" sent via iMessage. 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 ...

5. Through-the-earth mine communications - Wikipedia

   en.wikipedia.org/wiki/Through-the-earth_mine...

   PED is a one-way text paging device, with wide use in Australia, as well as installations in the United States, China, Canada, Mongolia, Chile, Tanzania, and Sweden. Australian company MST Global (formerly Mine Site Technologies) began the development of PED in 1987, and it became commercially available and Mine Safety & Health Administration ...

6. Mobile phone jammer - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_jammer

   Mobile phone jammer. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from ...

7. 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.

8. Mobile phone - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone

   A mobile phone (or cellphone [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 ...

9. Comparison of user features of messaging platforms - Wikipedia

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

   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.