Glossary of Terms

Understand basic Public Safety definitions and terms.

Trunk Group

Definition:

One or more trunks terminated at the same two points.

Manual Transfer

A feature that enables the PSAP attendant to transfer incoming 9‐1‐1 calls by manually obtaining dial tone through use of the telephone switch or...

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InterLATA

A term used to describe services, revenues, and functions that relate to telecommunications originating in one LATA and terminating in another LATA...

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Diversity

The technique of using one, two, or more separate transmission channels. If the channels are along the same path, there is frequency or polarization...

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Erlang

A measure of traffic intensity in a telecommunications system or network. One Erlang is one fully occupied traffic path. It is one traffic path...

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