What is a mobile phone status report?

Simply put, when you send a short message, a report will come back to tell you whether the short message you sent was successful or not, which is convenient for your information processing and will not delay or affect your work. It usually takes a few seconds to receive the information report. If the other party is turned off, it will be received when the other party is turned on. But if the time is too long, you will receive an information report: information transmission failed.

There is no charge, because the function of the mobile phone itself does not need the operator, so there is no charge.