ADD A NUMBER TO THE BLOCK LIST: From the home screen, select the Phone app. Select the Menu icon,then select Call settings. Note: The call blocking feature may not affect phone calls made or received via third-party apps installed on your device. Please contact third-party app developers for assistance with such applications. To automatically block calls from likely fraudsters, get alerts on suspected spam, and manually block calls learn more about AT&T Call Protect. Free for eligible users.
Select Call blocking & Decline with message.
Select Blocked numbers. Note: To add all unknown numbers (no caller ID) to the rejection list, select the Private numbers switch.
Select the Add icon.
Select desired contact location.
Choose the desired contact, recent call or enter the desired number to add to the list and select DONE. Note: For this demonstration, Call logs was chosen. When a number has been blocked, they are automatically routed directly to voicemail when calling you. To quickly block a number that has called you, select and hold the number from your Call log, then select Block number > BLOCK.
REMOVE A NUMBER FROM BLOCK LIST: From the Blocked numbers list, select the Delete icon > thedesired number(s) > REMOVE > REMOVE again to confirm.