Please explain in detail how the mobile phone makes a call, whether by satellite or by text message. If you send it out,

That is, the mobile phone dials the phone-connects to the base station (receiving and sending signals, that is, the signal tower)-exchanges the network (server, processing signals)-and then connects to the mobile phone through the base station. It is not transmitted by satellite, but generally by cable and submarine cable, and the processing capacity of satellite is limited. The content operator you called can't hear or see, so you have to encrypt it accordingly, not even their boss. That's illegal. If you want to see it, you may have to go through judicial procedures or involve national security (this is my personal opinion).