3.9.8.1. Starting the chat during a conference call 
During a conference call, non-guest participants can start the chat.
Prerequisites
- You are a UC user (not a guest participant).
- You have joined the conference using the WebClient, UC Desktop App or Fusion for Office.
To start the chat in a conference call, click 
on the call control bar.
on the call control bar.The chat panel is displayed for non-guest participants. Guest participants will
be able to see the chat only if a moderator adds them to it.
You can disable some active call panels to make the chat panel appear larger on
your call screen.