As of release 0.9.0, the jambonz listen verb supports streaming bidirectional audio.

Prior to release 0.9.0 bidirectional audio was supported but streaming was one-way: from jambonz to your application. Any audio you provided back had to be provided in the form of a base64-encoded file that was received and then played in its entirety.

To enable bidirectional audio, you must explicitly enable it in the listen verb with the streaming property as shown below:

{
  verb: 'listen',
  bdirectionalAudio: {
    enabled: true,
    streaming: true,
    sampleRate: 8000
  }
}

Your application should then send binary frames of linear-16 pcm raw data with the specified sample rate over the websocket connection.