InterLATA

A term used to describe services, revenues, and functions that relate to telecommunications originating in one LATA and terminating in another LATA...

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...

Tandem

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