The custom-parameter name MJ stamps on every <Stream> it emits (<Parameter name="mjToken" .../>).
Twilio echoes it back on the Media-Streams start frame as start.customParameters.mjToken, which is
how the media websocket proves it belongs to a call MJ itself accepted or placed.
The custom-parameter name MJ stamps on every
<Stream>it emits (<Parameter name="mjToken" .../>). Twilio echoes it back on the Media-Streamsstartframe asstart.customParameters.mjToken, which is how the media websocket proves it belongs to a call MJ itself accepted or placed.