How does Apple's mobile phone set up to block spam?

1. Open the SMS of iphone4s, then enter the page for viewing the content of spam messages received, and then click the details in the upper right corner, as shown in the figure below;

2. After entering the detailed information, if you need to mute the notification of this conversation, just turn on the Do Not Disturb mode below, as shown in the following figure (Note: After turning on the Do Not Disturb mode, the SMS sent by this number can be received normally, but there will be no ringing reminder).

3. If you want to completely block this number that sends short messages and don't receive such advertising information, you can click the I icon behind the phone number, then choose to block this incoming number, and finally confirm the operation of blocking contacts, as shown in the following figure (Note: setting a blocked contact is equivalent to adding this number to the blacklist, and you won't receive any short messages or phone harassment from this number in the future).