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Terminology
Description
U
UDP
User Datagram Protocol: A standard TCP/IP protocol that allows an application
of one device to send datagrams to an application at the other end. UDP uses
the IP protocol to send datagrams, providing unreliable connectionless
messaging services for applications. Therefore, UDP messages may be
discarded, duplicated, delayed, or sent out of order. UDP is used to transmit data
packets as much as possible. That is, the destination does not actively confirm
whether the correct data packet has been received.
URL
Uniform Resource Locator: An address that uniquely identifies the location of
web pages and other resources on the Internet. URLs usually begin with http://,
such as http://www.microsoft.com, and can include details such as the name of
a hypertext page (the extension is usually .html or .htm).
USB
Universal Serial Bus: Standard for serial buses with interface devices. This
standard was originally designed for computers, such as personal computers,
Apple's Macintosh computers, and so on. But with its popularity, this standard is
widely used in computer games and personal digital assistants.
W
Gateway
A device that connects two network segments that use different protocols
together. Its role is to translate and convert data from different network protocols
in different network segments.
Network jitter
A way of sound adjustment. The larger the value of the network jitter parameter,
the better the sound continuity. By adjusting the value of the network jitter
parameter, it is also possible to solve the different lip sounds that occur in the
conference.
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