How to completely block text messages from unknown numbers on iPhone?

Hello, our team is happy to ask you for answers:

IOS7.0 blocking method:

1. Phone number blocking: Select the phone number to be blocked. , click on the small circle with the exclamation mark on the right, scroll to the bottom, and click on the blocked call number.

2. Spam text message blocking: Select the text message you want to block, open it and click on the contact in the upper right, then click on the small circle with an exclamation mark on the upper right, pull it to the bottom, and click on the blocked call number. Can.

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