I sent him a message for an hour and the information report came back. But my mobile phone still works after I send a text message and make a phone call. What happened?

1. The information report is like this: your mobile phone will display the information report only after the other party's mobile phone displays the received information. If there is no signal on the other party's mobile phone at that time, you may not receive the information or the information report.

2. Also, information and telephone are different channels, and information has time delay. The phone is connected right away.

Network reasons, weather, surfing the internet, etc. will all affect the sending of information. I remember I sent a message before, but my girlfriend never received it. ...

Hehe, it's all my understanding ... If I'm wrong, don't blame me. I have been in this situation before.