Glossary of Terms

Understand basic Public Safety definitions and terms.

ALI Steering

Definition:

When the ALI provider receives a bid from a PSAP that has been configured to retrieve from an alternate ALI, the ALI provider steers that bid to the alternate ALI to retrieve the address and position data.

Steering

The process of routing an ALI bid to an alternative database when an ALI bid is made using a specific NXX or an NRF is returned by the database...

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Trunk Group Alternate Group

The alternate route for a high‐usage trunk group. A trunk group alternate route consists of all the trunk groups in tandem that led to the distant...

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Overflow

The process of automatically rerouting calls to an alternate facility.

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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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