To unblock a number inside the app:
From the home screen, tap the burger menu icon on the top left.
From the options, tap Blocked Numbers.
Find the number/name you would like to unblock, swipe the record right to left from the list.
Tap the button Unblock to do so.
To unblock other ways:
- From the Call History, you can swipe right to left on a blocked number and select the Unblock option.
- From the Messages, you can swipe right to left on the blocked sender and select the More > Unblock option.