IOS 7 has a new feature which allows to completely block a number from calling and texting me. I am curious if they get a message which says that they have been blocked, or it just keeps on ringing when they call and no one answers? What happens if they send a text message? Do they get a reply saying: "you have been blocked" or just nothing and silence? How do they know that their calls, voicemails and SMS's are not being seen by the receiver? I am currently pissed off at someone and would prefer them to know that their messages are unwanted instead of them sending me messages thinking that I am reading them.