How to turn off the phone and only receive short messages?

1, the phone is turned on and set to flight mode (or offline mode). When someone calls you, they think your phone is off.

2. Taking mobile as an example, we launched a call reminder service, and 3 yuan every month. When you cancel the flight mode, you will receive a text message from someone who called you.

3. When you open the call reminder service, others will call you and know that you have opened the call reminder service.

4. With mobile guards, the harassing phone interception setting can be set to return to busy tone or turned off.