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
UNIX
UNIX is an operating system, a set of the software that controls a computer's basic function.   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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Hosting
Providing a managed service to many clients from a centralized infrastructure. Plum offers world-class IVR hosting service to businesses of all sizes.