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VAD

Voice Activity Detector Also known as speech activity detection or speech detection, this is the detection of the presence or absence of human speech.

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UMG

Universal Media Gateway A gateway that offering connectivity to VOIP, GSM/3G/4G, T1/E1 PRI, and POTS networks on a single platform. It allows users to make and receive calls transparently on all [...]

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UI

User Interface At the most basic level, the user interface (UI) is the series of screens, pages, and visual elements—like buttons and icons—that enable a person to interact with a product or service.

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UDP

User Datagram Protocol A complement to TCP, UDP provides non-guaranteed, high performance network communication that facilitates the exchange of messages between computing devices in a network. [...]

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uCPE

Universal Customer Premise Equipment A general purpose platform that integrates compute, storage and networking on a commodity, off-the-shelf server, allowing it to provide network services (such [...]