1. Click the Allow/Block button.
2. The Allow/Block pop-up window appears.
3. Calls from allowed numbers bypass call screening and server side Do Not Disturb (not phone DND). To allow numbers for this user, enter a number in the Enter a number field under ALLOWED NUMBERS, and then click the plus sign next to this field. Repeat this step for each additional number you want to allow for this user.
4. Calls from blocked numbers receive a fast busy or number disconnected message. To block numbers for this user, enter a number in the Enter a number field under BLOCKED NUMBERS, and then click the plus sign next to this field. Repeat this step for each additional number you want to block for this user.
5. To block anonymous or unknown numbers, check Block anonymous or unknown.
6. Click Done.