How does Android block each other's SMS calls?

1, open the setting button, as shown in the figure below.

2. Then press the phone with your finger, as shown in the figure.

3. After the finger is pressed and turned on, the incoming call shielding and identification are turned on, as shown in the figure.

4. In the process of call blocking and identification, click Block Contact, as shown in the figure.

5. Then select the address book person we want to block, as shown in the figure.

6. After screening, it can be found that the call is blocked and identified, and then the other party's information can't be seen and can't be received.