Why can Huawei's mobile phone display its name in short messages, and why does it not display its name in incoming calls and display "unknown"?

The common reason is that if the caller ID function is not enabled, an unknown number will be displayed when there is an incoming call. Another reason is that if you still display an unknown number when the caller ID function is turned on, then the other party is likely to call you through unconventional channels, such as the Internet ~