I have an iPhone 5C from Verizon, and am currently running iOS 10.1.1 I think. I have been using the phone for probably around three years, but have only recently been receiving calls from numbers that I do not recognize. On those occasions when I have actually answered, I seem to get nothing. More recently I have not been answering to see if a message shows up; usually doesn't. So I looked up blocking calls, and have started trying that. But I have some questions. 1. The instructions say to go to call listings, and selected the circled i behind the call. I do that and select Block This Caller. The wording then changes to Unblock this Caller, which I take to mean that the caller has now been blocked until I unblock him. However, if the caller is blocked, how will I be notified that he has called again (perhaps requiring me to reconsidering blocking)? 2. If I edit and clear the call listings, what happens to the information/my instructions on call blocking? 3. Which leads me to wonder if blocking phone numbers is a good idea? 4. Am I doing this correctly? Thanks for comments and advice!