Serving Call Session Control Function (S-CSCF)
{"Image DocumentName": "Serving Call Session Control Function (S-CSCF)", "Image ImageDescription": "Acts as a registrar. Acts as a SIP proxy (forward messages ..) Allocated to a user during registration. Always on the path of the user\u2018s SIP messages (use Service-Route and RR) Enforces service policies based on the user\u2018s subscription profile. Collects session information for billing. Interacts with application service platform. Chose the appropriate AS based on user profile (initial filter criteria \u2013IFC) Forward to AS using ISC interface. Acts as user agent when required (Notifications about de-registrations and re-authentications, call termination)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}