Intercept the advertising message at this number. Can the other party send a message?

Baidu Library said that blocking a phone number is to prevent receiving advertising messages. The sender can still send SMS to your phone number, but you won't receive SMS. These messages will be blocked by your phone's spam filter and will not appear in your regular mailing list. Senders will not be notified that their mail is blocked, and they may continue to send mail to your phone number. However, you can manage the list of blocked contacts and phone numbers in phone settings to view and unblock any previously blocked numbers.