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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Abbreviations
  • 4 Requirement
  • 5 Cause of DTMF generation
  • 6 Support of DTMF across the air interface
  • 7 Effect of Handover

1 Scope

23.0143GPPRelease 17Support of Dual Tone Multi-Frequency (DTMF) signallingTS

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

The present document describes how Dual Tone Multi Frequency (DTMF) signals are supported in the 3GPP system.