Telecommunications info

NNI Task Force

NNI Task Force Introduction

3GPP SA3 Security

SA3 - Security

ETSI Standards

ETSI Standard	Title
TS 124 229	Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3
TS 129 279	Universal Mobile Telecommunications System (UMTS); LTE; Mobile IPv4 (MIPv4) based mobility protocols; Stage 3

RFCs of interest

RFC 3261 SIP: Session Initiation Protocol

RFC 3455 Private Header (P-Header) Extensions to the Session Initiation Protocol (SIP) for the 3rd-Generation Partnership Project (3GPP)

RFC 7913 P-Access-Network-Info ABNF Update