ESRP (Emergency Service Routing Proxy): Difference between revisions

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[https://www.nena.org/page/PRR_OptnsGuide NENA-INF-011, NENA NG9-1-1 Policy Routing Rules Operations Guide]
'''NENA-INF-011''', NENA NG9-1-1 Policy Routing Rules Operations Guide
[[Category:Glossary]]
[[Category:Glossary]]

Latest revision as of 18:26, 9 January 2024

ESRP (Emergency Service Routing Proxy) is an i3 functional element which is a SIP proxy server that selects the next-hop routing within the ESInet based on location and policy. There is an ESRP on the edge of the ESInet. There is usually an ESRP at the entrance to an NG9‑1‑1 PSAP. There may be one or more intermediate ESRPs between them.

Related Terms:

Originating ESRP

The first routing element within the Next Generation Core Services (NGCS). It receives calls from the BCF at the edge of the ESInet.

Terminating ESRP

The last ESRP for a call in NGCS.

Relevant NENA Documents
Note: To find and download the document, copy the document number (like NENA-STA-010) from below and search the NENA Standards and Documents page.


NENA-INF-011, NENA NG9-1-1 Policy Routing Rules Operations Guide