IVR Glossary

Plum Voice's comprehensive documentation of IVR concepts, topics, and terminology.

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Click one of the letters above to be taken to a page of all terms beginning with that letter.

U-law: U-law is a lossy method of audio encoding that will compress 16-bit linear PCM audio samples into 8-bit samples thereby reducing bitrate by 50%. Like its encoding cousin, a-law, u-law assumes that the audio stream contains predominantly voice data (as opposed to, say, music data) which has a low dynamic range. It then uses a pseudo-logarithmic algorithm to compress the data, favoring detail for samples in the “middle” of the range and effectively glossing over samples at the extremes. Read more...See also: Audio
Unbundled Network Elements: Unbundled network elements (or UNE) are requirements originally mandated by the United States Telecommunications Act of 1996, and are unbundled parts of a network that are required to be offered on an unbundled basis. Read more...
UNIX: UNIX is an operating system, a set of the software that controls a computer's basic function. Read more...
URL: URL, which stands for uniform resource locator, indicates where a resource is located on the Internet, and also specifies the method of retrieval. Read more...
Usability Testing: Usability testing involves evaluating a product by observing how users may interact with it. Read more...
User Interface: A user interface is a tool that allows for interaction between the human user and a machine. User interfaces allow for a user to perform certain tasks more easily and efficiently. Read more...

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