This Standard defines the Stage 2 (architecture) and Stage 3 (protocol) specifications for an IMS-based NG9-1-1 Service Architecture. This Standard includes the architecture, functional elements, call flows, protocols, and interfaces which were derived from the Stage 1 requirements in ATIS-0500023, “Applying Common IMS to NG9-1-1 Networks”.
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Standard for Implementation of an IMS-based NG9-1-1 Service Architecture
The Alliance for Telecommunications Industry Solutions , 07/01/2024
Pages: 205
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