NOTE: As of the time of publication this feature is still in Beta and full functionality cannot be guaranteed.
Step 1. Log into the Admin Portal and navigate to the Corporate Administration menu.
Step 2. Select the Call Blocking (Beta) option from the Corporate Administration menu and click on the "Add" button
Step 3. Full out the "Add Blocked Number(s) form and click Save. Once saved the blocked number will be added to the Call Blocking list.
NOTE: A Full list of Country Codes can be found at https://countrycode.org/