I have an iPhone 4S. If I block someone else’s phone number, can I still see the messages they send me and call me?

After blocking the other party’s number on your Apple phone, the other party’s text messages and phone calls will be blocked at the same time, so you cannot see the other party’s calls or text messages.

The steps to set up the blacklist are as follows:

1. Open "Settings";

2. Find "Phone";

3 .Find "Blacklist";

4. Click "Add" and you will be directed to the address book;

5. Select the number to be added to the blacklist.