- UC
- Meaning: "Unified Communication", a collective term for the integration of all kinds of different communications applications, types and channels within a communication solution
- UCC
- Meaning: "Unified Communication & Collaboration", a collective term for the integration of UC with additional tools for optimising the ways staff in companies work together
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UI
- Meaning: "user interface", a human/machine interface, usually control software, with which users interact with a technical system
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UM
- Meaning: "United Messaging" – this is used to present incoming messages to the user in a uniform form, e.g. as e-mail with attached audio, image or text files
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UMS
- Describes the merging of different types of communication on a single platform
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UP0 connection
- In an ICT system, the UP0 port is used for connecting digital end devices, using a single twin-core wire; COMfortel series ISDN system telephones are connected directly to the internal UP0 port, other ISDN devices need a UP0/S0 adapter
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USB
- Digital interface for devices in IT technology
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USB host port
- Interface for devices with Universal Serial Bus
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USB interface
- Siftware interface, Universal Serial Bus standard
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USB port
- Hardware interface, Universal Serial Bus standard
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user interface
- The place at which a user interacts with operating software and hardware, in order to use it
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user licence
- Gives a user the right to use an Auerswald COMtrexx system
