How to unblock a number on the Samsung Galaxy S III?

Without being aware of any action on my part, a contact number has the blocked sign (like the 'No Entry' road sign) and he cannot call me. I have deleted and reinstated the contact but it doesn't work - how can I unblock this number?




Tap the phone icon (dialer) > Press Menu key > Call Settings > Call rejection > Auto reject list. Hope that helps.



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