After intercepting the other party’s text messages, does the other party know?

After intercepting the other party’s text messages, the other party does not know. According to the query on the Pacific Computer Network, the other party will not know if you have set up SMS blocking, unless you set up the blocked phone call and the other party will know. Therefore, after intercepting the other party's text messages, the other party does not know. When you receive a text message from a blacklisted mobile phone number, the notification bar will show that the text message has been intercepted. At this time, click on the intercepted text message to enter the text message application interface.