Does SMS have a rejection function?

There are two ways for mobile phones to refuse to receive short messages, as shown below:

First, you can ask the salesman in the business hall to cancel the SMS service, so that you can't send and receive SMS in the future.

Secondly, if someone refuses to receive SMS, you can set it to look for security software or harassment interception software on your mobile phone.

Taking Xiaomi mobile phone as an example, the basic operation is as follows:

1. Open the "Security Center" and click "Harassment Interception".

2. You can see the number of text messages and call interceptions in "harassment interception". Click "Settings" to set interception rules, black and white lists, etc. Click on the "blacklist number" here.

3. Open the "blacklist" and find the mobile phone number of the intercepted SMS and phone. You can add a new number, or edit the number to block only SMS or incoming calls, or block all incoming calls. Short Message Service (SMS for short) refers to the text or digital information directly sent or received by users through mobile phones or other telecommunication terminals. The number of characters that users can receive and send short messages at a time is 160 English or numeric characters or 70 Chinese characters.