Blacklists allow you to block particular phone numbers from contacting your phone system. Please be aware that this is a system wide change - That number will hear a busy signal when attempting to dial in to your system.
Table of Contents
From the Dashboard, click on the hamburger menu Icon (3 horizontal lines) and click on Blacklists
You will be taken to the Blacklist Settings screen, to add or create a new list click on Edit Blacklists
When those phone numbers attempt to call your phone numbers, they will get a busy signal.
Click on Edit Blacklists