Vobiz Audio Streams skill

Use this for AI voice agents, real-time transcription, custom STT/TTS pipelines, or any workflow that needs raw audio frames rather than just recordings.

How it works

During a call, your VobizXML answer handler returns a <Stream bidirectional="true">wss://your-server/ws</Stream> verb.
Vobiz opens a WebSocket to your server and sends a single start event with callId, streamId, and mediaFormat.
Audio frames flow Vobiz → your server as media events (~50 per second per track, 20 ms each).
For bidirectional streams, your server sends playAudio events back, plus checkpoint, clearAudio, and stop control messages.
When the call ends, the WebSocket closes - there is no inbound stop event.

Two ways to start a stream

Approach	When to use
`<Stream>` XML verb	The call is being set up by your answer handler. Best for AI agents that own the call from the first ring. Bidirectional playback requires this path.
REST `POST .../Stream/`	The call is already live and you want to attach (or fork) audio mid-call - e.g. start transcription after a transfer. Returns a `stream_id` you can later list/get/stop.

vobiz-audio-streams

Vobiz Audio Streams skill

How it works

Two ways to start a stream