This call was automatically blocked. This is how you can block all unwanted calls before they call you. Upgrade to a phone that can "block all incoming calls" and "allow contacts only". Once you set your phone to these settings, only people on your contact list can call you. All other incoming calls are automatically blocked and your phone won't ring. Blocked calls will show up on the caller ID as a missed call. You will never have to block a number again. Ask your phone store about phones that can block all incoming calls and allow contacts only.