full Table of Contents for TS 23.280 Word version: 17.1.0
7.5 Reference points
7.5.1 General reference point principle
7.5.2 Application plane
7.5.3 Signalling control plane
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7.5 Reference points
7.5.1 General reference point principle
7.5.2 Application plane
7.5.2.1 General
7.5.2.2 Reference point CSC-1 (between the identity management client and the identity management server) Word-p. 41
7.5.2.3 Reference point CSC-2 (between the group management client and the group management server for configuration while UE is on-network)
7.5.2.4 Reference point CSC-3 (between the MC service server and the group management server)
7.5.2.5 Reference point CSC-4 (between the configuration management client and the configuration management server for configuration while UE is on-network)
7.5.2.6 Reference point CSC-5 (between the MC service server and the configuration management server) 
7.5.2.7 Reference point CSC-7 (between the group management servers) Word-p. 42
7.5.2.8 Reference point CSC-8 (between the key management server and the key management client)
7.5.2.9 Reference point CSC-9 (between the key management server and the MC service server)
7.5.2.10 Reference point CSC-10 (between the key management server and the group management server)
7.5.2.11 Reference point CSC-11 (between the configuration management client and the configuration management server for configuration while UE is off-network)
7.5.2.12 Reference point CSC-12 (between the group management client and the group management server for configuration while UE is off-network)
7.5.2.13 Reference point CSC-13 (between the configuration management server and the MC service user database) Word-p. 43
7.5.2.14 Reference point CSC-14 (between the location management client and the location management server)
7.5.2.15 Reference point CSC-15 (between the location management server and the MC service server)
7.5.2.16 Reference point CSC-16 (between group management servers in different MC systems) [R15]
7.5.2.17 Reference point CSC-17 (between configuration management servers in different MC systems) [R15]
7.5.2.18 Reference point CSC-18 (between migration management servers in different MC systems) [R15]
7.5.2.19 Reference point MCX-1 (between MC service servers) [R15] Word-p. 44
7.5.2.20 Reference point CSC-19 (between group management server and MC gateway server) [R16]
7.5.2.21 Reference point CSC-20 (between configuration management server and MC gateway server) [R16]
7.5.2.22 Reference point CSC-21 (between MC gateway servers in different MC systems) [R16]
7.5.3 Signalling control plane
7.5.2.7 Reference point CSC-7 (between the group management servers) Word-p. 42
7.5.2.8 Reference point CSC-8 (between the key management server and the key management client)
7.5.2.9 Reference point CSC-9 (between the key management server and the MC service server)
7.5.2.10 Reference point CSC-10 (between the key management server and the group management server)
7.5.2.11 Reference point CSC-11 (between the configuration management client and the configuration management server for configuration while UE is off-network)
7.5.2.12 Reference point CSC-12 (between the group management client and the group management server for configuration while UE is off-network)
7.5.2.13 Reference point CSC-13 (between the configuration management server and the MC service user database) Word-p. 43
7.5.2.14 Reference point CSC-14 (between the location management client and the location management server)
7.5.2.15 Reference point CSC-15 (between the location management server and the MC service server)
7.5.2.16 Reference point CSC-16 (between group management servers in different MC systems) [R15]
7.5.2.17 Reference point CSC-17 (between configuration management servers in different MC systems) [R15]
7.5.2.18 Reference point CSC-18 (between migration management servers in different MC systems) [R15]
7.5.2.19 Reference point MCX-1 (between MC service servers) [R15] Word-p. 44
7.5.2.20 Reference point CSC-19 (between group management server and MC gateway server) [R16]
7.5.2.21 Reference point CSC-20 (between configuration management server and MC gateway server) [R16]
7.5.2.22 Reference point CSC-21 (between MC gateway servers in different MC systems) [R16]
7.5.3.1 General
7.5.3.2 Reference point SIP-1(between the signalling user agent and the SIP core)
7.5.3.3 Reference point SIP-2 (between the SIP core and the SIP AS) Word-p. 45
7.5.3.4 Reference point SIP-3 (between the SIP core and SIP core)
7.5.3.5 Reference point HTTP-1 (between the HTTP client and the HTTP proxy)
7.5.3.6 Reference point HTTP-2 (between the HTTP proxy and the HTTP server)
7.5.3.7 Reference point HTTP-3 (between the HTTP proxy and HTTP proxy)
7.5.3.8 Reference point AAA-1 (between the SIP database and the SIP core) Word-p. 46
7.5.3.9 Reference point AAA-2 (between the SIP core and Diameter proxy) [R15]
