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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions, symbols and abbreviations
  • 4 Telepresence overview
  • 5 Protocol using SIP for telepresence
  • 6 Protocol using SDP for telepresence
  • 7 Protocol using CLUE for telepresence
  • 8 Protocol for floor control for telepresence
  • A.1 Scope of signalling flows
  • A.2 Key required to interpret signalling flows
  • A.3 Flows demonstrating the creation of an IM conference supporting telepresence
  • A.4 Flows demonstrating the update of an onging IM conference supporting telepresence

A.2 Key required to interpret signalling flows

24.1033GPPRelease 17Stage 3Telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS)TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

The key to interpret signalling flows follows the description as specified in annex A of 3GPP TS 24.147 [3].