Glossary of Terms

Understand basic Public Safety definitions and terms.

IntraLATA

Definition:

A term used to describe services, revenues, functions, and so on that relate to telecommunications originating and
terminating within a single LATA.

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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CTRPT

Call Termination Report. Indication message when the PSAP terminates the 9‐1‐1 call. This message allows the call resources and the ESRK to be...

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Tandem

A term used interchangeably with “switch” and “router” to refer to the office that serves as the hub for 9‐1‐1 calls.

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E-UTRAN

Evolved Universal Terrestrial Radio Access Network. An air interface to 3GPP's Long Term Evolution (LTE) upgrade path for mobile networks.

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