Why did iMessage change from read to sent?

The reason why Apple information has been read and delivered is because the user has turned on the function of sending the read receipt of mobile phone information, so there will be such a change, which still needs to be understood.

After starting the QQ address book, you will enter the contact page by default. Users can drag up and down to browse. When dragging, the first letter will be displayed for users to find. At the same time, you can directly click on the letter bar on the right to quickly locate.

At the same time, Q letter also supports voice intercom. Click the text/voice switch button on the left side of the input box to switch the Q letter to voice intercom mode. At this point, the input box will become an intercom button, and the user can start talking by pressing it. After speaking, the release button will send a voice message to the other party. After testing, it can support the longest recording time of 1 minute. When the voice of the other party is received, the Q letter will be played automatically, and the user can click the play button to listen again at any time thereafter.