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The S9 interface is a 4G interface between the Visiting PCRF and Home PCRF.

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.

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Network Diagram

Messages

Call Flows

Standards

  • 3GPP TS 29.212
  • 3GPP TS 29.215

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Related Products and Protocols

Products

Protocols

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