Glossary of Terms

Understand basic Public Safety definitions and terms.

Shape File

Definition:

A file containing a Geolocation shape(s), such as PSAP shapes or PSAP and cell sector layers.

Selective Router Bridge/Transfer

A scenario where IEN Voice has delivered a call to a PSAP supported by IEN Voice. That PSAP chooses to bridge on a PSAP that is not connected...

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COF: Uncertainty

Sometimes shown in a display field on a PSAP's CPE. Contains the uncertainty (in meters) associated with the lat/long. Uncertainty is a measurement,...

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Fixed Transfer

A feature which enables a PSAP attendant to transfer incoming 9‐1‐1 calls to secondary PSAPs by activating a single button.

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Alternate PSAP

An Alternate PSAP is designated to receive 9‐1‐1 calls if the call cannot be delivered to the primary PSAP.

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