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Sinch Voice API: Choosing between v1 and v2

For all new projects, please use Voice API v2. This is especially important for projects involving:

  • AI capabilities like Streams and Voice Relay
  • Voice campaigns like Batch calling

You should only use the older Voice API v1 if one of the following is a strict requirement:

  • The project must be in General Availability (GA).
  • The project requires In-App voice or Conferencing (until these features are available in v2).

DtmfReceive

Payload Schema

  • command (string, required)

  • sequence (string, required) A single or multiple DTMF tones.