Number Shield funktioniert nicht

Block numbers directly from your phone's missed calls screen. 1.  Do you get unwanted calls or text messages from phone numbers similar to your own?  Block annoying scammers who hide behind fake phone numbers.  With Number Shield, block an entire group of numbers at once.  Block all similar numbers by entering 714-555-####.  Block international numbers, too!  Wildcards and numbers can be combined in any order you choose.  Use the "Allow Contacts" option to make sure you don't miss calls from your family and friends.  For example, if your number is 714-555-1234, scammers might use a number like 714-555-6789.  Just enter a wildcard for each digit you want to block.  Now you'll see the Number Shield number entry screen.  Tap “Block Similar Numbers”. (If you don't see this action, tap “Edit Actions... “ to enable it. 4.  Tap the “ i ” button next to the missed call. 3.  Tap “Done” to block calls from similar numbers. • Each number pattern can contain up to 7 wildcards, and up to 50,000,000 phone numbers can be blocked. • Blocked calls are sent directly to voice mail. • Blocked text messages are sent to the “Junk” filter in the Messages app. • When “Do Not Disturb” is enabled on your phone, calls that should be blocked may appear in your phone's list of missed calls.