Your Samsung mobile phone allows you to create a blocked phone numbers list. Any numbers that appear on your reject list will be blocked from calling or contacting you via your mobile phone.
Head to Settings > Applications > Call. Next, click on All Calls > Auto Reject > Reject list.
Here, you will be able to add or delete numbers on this list. You can remove a number from the reject list by simply unchecking the number(s) of your choice.
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