Content for TS 23.417 Word version: 7.0.0
5 Overview
6 Functional entities
7 Internal reference points
8 Value added services architecture
9 External interfaces
10 Interconnection with other networks
11 Interface with the Network Attachment Subsystem (NASS)
12 Interface with the Resource and Admission Control Subsystem (RACS)
A IMS Access scenarios
B IMS interconnection scenarios
$ Change history
5 Overview p. 9
6 Functional entities p. 10
6.1 Call Session Control Function (CSCF) p. 11
6.2 Media Gateway Control Function (MGCF) p. 11
6.3 Multimedia Resource Function Controller (MRFC) p. 12
6.4 Breakout Gateway Control Function (BGCF) p. 12
7 Internal reference points p. 12
7.1 Reference point MGCF - CSCF (Mg reference point) p. 12
7.2 Reference point CSCF - MRFC (Mr reference point) p. 12
7.3 Reference point CSCF - CSCF (Mw reference point) p. 13
7.4 Reference point CSCF - BGCF (Mi reference point) p. 13
7.5 Reference point BGCF - MGCF (Mj reference point) p. 13
7.6 Reference point BGCF - BGCF (Mk reference point) p. 13
7.7 Reference point CSCF or BGCF - IBCF (Mx Reference Point) p. 13
8 Value added services architecture p. 14
8.1 Overview p. 14
8.2 Reference points p. 15
8.2.1 Reference point S-CSCF - ASF (ISC reference point) p. 15
8.2.2 Reference point UPSF - SIP AS or OSA SCS (Sh reference point) p. 15
8.2.3 Reference point UPSF - IM SSF (Si reference point) p. 15
8.2.4 Reference point ASF - SLF (Dh reference point) p. 16
8.2.5 Reference point UE - ASF (Ut reference point) p. 16
9 External interfaces p. 16
9.1 Interfaces with entities in the transfer plane p. 16
9.1.1 Reference Point MGCF - T-MGF (Mn Reference Point) p. 16
9.1.2 Reference point MGCF - SGF (Ie reference point) p. 17
9.1.3 Reference point MRFC - MRFP (Mp reference point) p. 17
9.2 Interface with the UE p. 17
9.3 Interfaces with the user profile p. 17
9.3.1 Reference point CSCF - SLF (Dx reference point) p. 17
9.3.2 Reference point CSCF - UPSF (Cx reference point) p. 17
9.4 Interfaces with Charging Functions p. 18
10 Interconnection with other networks p. 18
10.1 Interfaces with the PSTN/ISDN p. 18
10.2 Interfaces with other IP-based service subsystems p. 18
11 Interface with the Network Attachment Subsystem (NASS) p. 19
12 Interface with the Resource and Admission Control Subsystem (RACS) p. 20
A IMS Access scenarios p. 21
B IMS interconnection scenarios p. 22
$ Change history p. 25
