Currently Being ModeratedNov 28, 2013 11:08 AM (in response to JUSTJOANH)
Another way to block a contact in iOS 7
You can also block contacts that are already in your phone. This works via the Settings app. Go to Settings - it is a grey app on your home screen. Then scroll down to Phone.
Scroll down again and you will see an entry for 'Blocked'. This shows you a list of blocked contacts. Click Add New... and you will be taken to your Contacts. Select the Contact you wish to block, and confirm your choice.
To undo this simply click the edit and the "red dot" to "unblock" the contact. That should do it!