What happens when the communication outgoing function is turned off?

Turning off the communication output function will have the following effects:

1. After the phone is turned off, you don't know who is calling when it is turned off or stopped, and you may miss important calls.

2. SMS call service refers to automatically recording all incoming information when the mobile phone is turned off or out of service area. When the mobile phone is turned on, the incoming information will be sent to the mobile phone in the form of SMS.