Routing ESN

Definition:

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 change. Used when an onboard selective router does not have the capacity to store all

of the unique ESNs needed for the geographical area it supports.

A person representing the local government agency in the implementation of enhanced 9‐1‐1. The County or MSAG Coordinator is responsible for...

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...

The PSAP to which a 9‐1‐1 call is first routed. If the PSAP receives calls through transfer but also receives first routed calls, it is still a...

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

Glossary of Terms