When you block a phone number or contact, the number can still leave a voicemail, but you won't get a notification. Messages sent to or received from blocked contacts won't be delivered.

Just having an active phone number ... want to block someone who's already registered in your Contacts list, the process is equally simple. Open the Settings app. Tap Phone. Tap Blocked Contacts.

There are all sorts of reasons to block a number: An ex who can't take a hint, relentless telemarketers, or those scammers who love spoofing. When your phone has buzzed one more time than you can ...