Provide instruction on how to manage call settings
To change call settings, next to your profile picture, click the three dots and then Settings.
Go to the Calls section, and you can change your call handling and forwarding. This section will also allow you to manage voicemail, out-of-office voicemail, manager call group, delegates, and, if applicable, emergency calling.
Note: You’ll only see the Calls section if your Office 365 subscription includes an Enterprise Voice license.