Voice role

The voice peer implements operations directed to it, may call operations implemented by its peer, emits its own events, and receives peer events.

Must implement

application.move — Advance the IVR flow to another application node after replying.
audio.buffer.clear — Discard buffered audio that has not yet been played.
call.hangup — Hang up the telephony call after replying.
ping — Measure application-layer latency and optionally echo arbitrary data.
recording.start — Start recording the telephony call.
recording.stop — Stop a recording by identifier.
session.get — Get selected session variables, or all variables when keys is empty.
session.set — Set free-form variables on the voice session.

ping — Measure application-layer latency and optionally echo arbitrary data.
session.initialize — Negotiate the audio codec and initialize a real-time voice session.
session.terminate — Terminate the real-time voice session after replying.

audio.info — Report periodic audio read and write throughput counters.
call.hangup — Report that the telephony call has ended.
dtmf — Report a DTMF key after the remote caller releases it.
session.updated — Report a change to negotiated session state such as the selected codec.

agent.tool.call — Publish the redaction-safe name of a tool invoked by the agent.
audio.speech.started — Signal that speech started for barge-in handling.
input.transcript — Publish one finalized caller speech transcript.
output.transcript.delta — Stream an incremental piece of the agent's spoken-output transcript.
output.transcript.done — Finalize the current agent spoken-output transcript.