Under Notifications, choose Chats and calls or Calls only. Calls always come through, even when the app is closed.

Under Sounds & hints, turn on sounds for connecting and hanging up. A hint tone warns you when the connection gets weak.

With Show calls in system call log, your company calls also appear in your phone's call log.

Under Appearance, choose System, Light, or Dark. Below that, set a Start view and an Accent color.

Change Codecs, Image quality, and Enable intercom only after consulting your administration.