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Conceptual Architecture: Centralized (IMS) NNI PE
IP Phone
IP Phone
Sprint
VoIP
Other
VoIP
PSTN
PSTN
MG
MG
SS7
SS7
Wireless
Wireless
3rd Party IP Network
PSTN
PSTN
Media Relay/MPLS Switch
SF
MF
RF
MF
RF
IBCF+I-CSCF+ SF
Security + Policy
Media Relay/E-LSR
Security + Policy
Routing
Media Relay/E-LSR
Security + Policy
Routing
Control plane of SBC integrates with CSCF, Bearer + Routing planes integrate with edge routers. One-to-many model
ENUM
ENUM
SF
CSCF
BGCF
CSCF
SF
BGCF
OF functions distributed across entities
PPT Version