Glossary of Terms

Understand basic Public Safety definitions and terms.

Alternate PSAP

Definition:

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

PSAP, Secondary

The Secondary PSAP receives emergency calls from the 9‐1‐1 network only as a result of a transfer. The Secondary PSAP never receives first routed...

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ANI/ALI Inquiry

A form used by PSAPs to report ALI display discrepancies and/or 9‐1‐1 call misroutes to the PSAP. The PSAP then forwards an inquiry to the Intrado...

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Alternate Routing

A method by which 9‐1‐1 calls are routed to a designated alternate location if all IEN or wireless lines to the primary PSAP are busy, or the primary...

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Wireless Phase .5

The delivery to a PSAP of either callback number or location information (but not both) for a wireless 9‐1‐1 call.

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