Apple iphone5s/5c How to set SMS blacklist

Specific steps

The first step: we enter the phone's "contact" as shown in the following image.

Step two: Then click on a contact details and click on the "I" logo as shown in the following figure.

Step three: At the bottom of the chart below we will see "Block this Caller ID" item.

Fourth step: Finally in the confirmation box that pops up, confirm that the number is blocked. Thereafter, there will be no incoming calls, messages or FaceTime calls from that number.

Small Tips

Simple steps to achieve the prevention of spam messages, of course, we should pay attention to this setting after the caller will also be added to the blacklist, FaceTime call can not accept the blacklist contact.