Glossary:

ATIS Telecom Glossary

Search Keyword By: I

Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.

intelligent peripheral (IP)

1. A functional component that may be used most efficiently when accessed locally.
2. An intelligent-network feature that provides specialized telecommunication capabilities required by IN/2 service logic programs.

intelligibility

For voice communications, the capability of being understood.
Note: Intelligibility does not imply the recognition of a particular voice.

INTELSAT

Abbreviation for International Telecommunications Satellite Organization. [47 CFR
0. 453]

intensity

The square of the electric field strength of an electromagnetic wave.
Note: Intensity is proportional to irradiance and may be used in place of the term "irradiance" when only relative values are important.

intensity modulation (IM)

In optical communications, a form of modulation in which the optical power output of a source is varied in accordance with some characteristic of the modulating signal.
Note: In intensity modulation, there are no discrete upper and lower sidebands in the usually understood sense of these terms, because present optical sources lack sufficient coherence to produce them. The envelope of… (Read More →)

inter-LATA

1. Between local access and transport areas (LATAs).
2. Services, revenues, and functions associated with telecommunications that originate in one LATA and that terminate in another one or that terminate outside of that LATA.

inter-satellite service

A radiocommunication service providing links between artificial Earth satellites. [NTIA] [RR] [47CFR]

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