There is no sound in Apple's text message, and there is no hint in it. I didn't know there was information until I entered the SMS bar. How?

Phone4s' incoming call has sound, but SMS has no sound, because the sound of SMS is independent. After mute is set, there is no sound when the text message comes in.

The steps for setting SMS sound are as follows:

First, point setting;

Second, notice;

Third, integral information;

Four, when the "license notice" is in the open state, it is possible to make a sound;

5. Click on "Notification Sound" and select "Reminder Ring" of SMS. The top one is "none", which means that there is no sound when the text message comes, and everything else is audible.