ESS (External Switching Systems)

From NENA Knowledge Base

ESS (External Switching Systems) are the administrative, non-emergency communications systems within the PSAP that serve as external switching systems for telephony and other administrative communications (voice mail, email, instant messaging, etc.). The ESS equipment might be represented by a traditional PBX or other communications gateway.

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-040, NENA Managing & Monitoring NG9-1-1 Information Document

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