How does the mobile phone simulator on the computer send text messages to the mobile phone?

The mobile phone is connected to Fengwo network, and the mobile phone simulator on the computer is not connected to Fengwo network, so it is impossible to send short messages directly to the mobile phone.

The mobile phone simulator on the computer actually runs on a special virtual machine. For example, android emulator runs in DVM, and DVM runs in a process in the computer, then the mobile phone emulator on the computer is actually a process in the system. Of course, he can enjoy the systematic network, but that's just the internet, not Fengwo.

If the mobile phone simulator on the computer wants to test the function of sending short messages, it can be sent to another mobile phone simulator for testing, and each process will use different ports. The mobile phone simulator can send information to the port number of another mobile phone simulator to test the function of sending short messages.