Joke Collection Website - Public benefit messages - How to know if the other party’s phone is turned off?

How to know if the other party’s phone is turned off?

Make calls and send text messages. Displayed according to query Kuqi.com.

1. When making a call, the other party’s phone is really turned off, and listen to the notification tone that the other party has turned off the phone.

2. Send a text message. If you send a text message and do not receive a delivery report or read receipt, it proves that the other party's mobile phone is turned off.