{
  "event": "start",
  "stream_id": "unique_id",
  "config": {
    "input_format": "pcm_44100",
    "output_audio_delivery": "as_available",
    "voice_id": "a0e99841-438c-4a64-b679-ae501e7d6091"
  },
  "agent": {
    "introduction": "Hello, I'm an AI assistant",
    "system_prompt": "### Your Role \n You are a helpful assistant"
  },
  "metadata": {
    "to": "user@example.com",
    "from": "+1234567890"
  }
}

{
  "event": "media_input",
  "stream_id": "unique_id",
  "media": {
    "payload": "base64_encoded_audio_data"
  }
}

{
  "event": "dtmf",
  "stream_id": "unique_id",
  "dtmf": "1"
}

{
  "event": "custom",
  "stream_id": "unique_id",
  "metadata": {
    "user_id": "user123",
    "session_info": "custom_data"
  }
}

{
  "event": "ack",
  "stream_id": "unique_id",
  "config": {
    "input_format": "pcm_44100",
    "output_audio_delivery": "as_available",
    "voice_id": "a0e99841-438c-4a64-b679-ae501e7d6091"
  },
  "agent": {
    "system_prompt": "### Your Role \n You are a helpful assistant",
    "introduction": "Hello, I'm an AI assistant"
  }
}

{
  "event": "media_output",
  "stream_id": "unique_id",
  "media": {
    "payload": "base64_encoded_audio_data"
  }
}

{
  "event": "clear",
  "stream_id": "unique_id"
}

{
  "event": "transfer_call",
  "stream_id": "unique_id",
  "transfer": {
    "target_phone_number": "+1234567890"
  }
}