Joke Collection Website - Blessing messages - There is no sound and no reminder box when IPhone 4s receives SMS. What happened?

There is no sound and no reminder box when IPhone 4s receives SMS. What happened?

1: On the main interface of the mobile phone, click the setting option.

2: After opening the settings, click the notification.

3: After opening the notification, click Information to enter.

4: Then you will see the following interface, and you can set it.