Glossary of Terms

Understand basic Public Safety definitions and terms.

MISROUTE

Definition:

A condition that results in the 9-1-1 call going to the wrong PSAP. A call can be misrouted if the emergency service number and associated routing information are incorrect in the E9-1-1 database and/or tandem database. A call can also be misrouted if the call is an ANI failure, which automatically default routes.

Inter-Tandem Transfer

The capability of transferring a call over the 9‐1‐1 network from a PSAP served by one 9‐1‐1 tandem to a PSAP served by a different 9‐1‐1 tandem.

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Routing ESN

Used by the 9‐1‐1 Tandem switch office to properly route a 9‐1‐1 call. The routing ESN will change whenever the emergency services for the area...

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CELL_ESRD

A 10‐digit number used to support routing of wireless 9‐1‐1 calls through the 9‐1‐1 network. The CELL_ESRD is utilized atthe PSAP for static ALI...

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SELECTIVE TRANSFER

Provides the PSAP with the ability to transfer the incoming 9-1-1 call to a fire, police, or ambulance for the particular number calling 9-1-1 by...

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