Why did you receive a text message?

1. Because the mobile phone supports the corresponding protocol, I received the flash message first.

2. Secondly, the mobile phone number has been bound with a flash message.

3. Finally, the mobile phone number is bound with a flash message, which is also called hands-free SMS. Short message is a new short message service. When sending a flash message, the other party does not need to open it after receiving the flash message.