In wireless applications, the S9 interface is a 4G interface between the Visiting PCRF and Home PCRF.
Overview
S9 interface is between the Visiting PCRF and Home PCRF. It uses Diameter over UDP transport protocol.
Network Diagram
Messages
Call Flows
Standards
- 3GPP TS 29.212
- 3GPP TS 29.215
Related Products and Protocols
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