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ETSI TS 124 379
M00002721
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ETSI TS 124 379 LTE; Mission Critical Push To Talk (MCPTT) call control; Protocol specification (3GPP TS 24.379 version 14.2.0 Release 14)
standard by European Telecommunications Standards Institute, 07/01/2017
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Full Description
The present document specifies the session control protocols needed to support Mission Critical Push To Talk (MCPTT). The present document specifies both on-network and off-network protocols.Mission critical communication services are services that require preferential handling compared to normal telecommunication services, e.g. in support of police or fire brigade.
The MCPTT service can be used for public safety applications and also for general commercial applications (e.g., utility companies and railways).
The present document is applicable to User Equipment (UE) supporting the MCPTT client functionality, and to application servers supporting the MCPTT server functionality.