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  2. Autovon - Wikipedia

    en.wikipedia.org/wiki/Autovon

    The Automatic Voice Network (AUTOVON, military designation 490-L) [1] was a worldwide American military telephone system. The system was built starting in 1963, based on the Army's existing Switch Communications Automated Network (SCAN) system. In June 1966, the Air Defense Command voice network was cut over to the new service. [2]

  3. Network video recorder - Wikipedia

    en.wikipedia.org/wiki/Network_Video_Recorder

    A network video recorder (NVR) is a specialized computer system that records video [1] to a disk drive, USB flash drive, memory card, or other mass storage device. An NVR itself contains no cameras, but connects to them through a network, typically as part of an IP video surveillance system.

  4. Network interface device - Wikipedia

    en.wikipedia.org/wiki/Network_interface_device

    In telecommunications, a network interface device (NID; also known by several other names) is a device that serves as the demarcation point between the carrier's local loop and the customer's premises wiring. Outdoor telephone NIDs also provide the subscriber with access to the station wiring and serve as a convenient test point for ...

  5. Signalling System No. 7 - Wikipedia

    en.wikipedia.org/wiki/Signalling_System_No._7

    Together with MTP Level 3 it is called the Network Service Part (NSP). SCCP completes the functions of the OSI network layer: end-to-end addressing and routing, connectionless messages (UDTs), and management services for users of the Network Service Part (NSP). [15] Telephone User Part (TUP) is a link-by-link signaling system used to connect calls.

  6. Wi-Fi calling - Wikipedia

    en.wikipedia.org/wiki/Wi-fi_calling

    Using this feature, compatible handsets are able to route regular cellular calls through a wireless LAN (Wi-Fi) network with broadband Internet, while seamlessly changing connections between the two where necessary. [3] This feature makes use of the Generic Access Network (GAN) protocol, also known as Unlicensed Mobile Access (UMA). [4] [5]

  7. Defense Red Switch Network - Wikipedia

    en.wikipedia.org/wiki/Defense_Red_Switch_Network

    The phone has the four extra MLPP buttons and 48 programmable buttons for access to both secure and nonsecure lines. [ 1 ] The Defense Red Switch Network (DRSN) is a dedicated telephone network which provides global secure communication services for the command and control structure of the United States Armed Forces .

  8. Smart camera - Wikipedia

    en.wikipedia.org/wiki/Smart_camera

    Early smart camera (ca. 1985, in red) with an 8MHz Z80 compared to a modern device featuring Texas Instruments' C64 @1GHz. A smart camera is a machine vision system which, in addition to image capture circuitry, is capable of extracting application-specific information from the captured images, along with generating event descriptions or making decisions that are used in an intelligent and ...

  9. 4G - Wikipedia

    en.wikipedia.org/wiki/4G

    The improved network capacity and lower latency also support high-speed, low-latency applications, enhancing user experience in activities such as online gaming and live broadcasts. However, in December 2010, the ITU expanded its definition of 4G to include Long Term Evolution (LTE), Worldwide Interoperability for Microwave Access (WiMAX), and ...