20 17-05-08, QQ punch-in is a function introduced by QQ7.0, which is similar to punch-in

Enter qq, the upper left corner has the function of punching in. This punch-in function is in the upper left corner of the left information column, which looks obvious.

QQ is an instant messaging software launched by Tencent on 1999. It can not only chat and make friends on various communication terminals, but also make free video and voice calls, or send and receive important files anytime and anywhere. It can also communicate with mobile communication terminals, IP telephone networks, wireless paging and other communication methods. These powerful and practical functions make QQ a convenient and efficient instant messaging tool, not just a simple network virtual pager.

QQ has covered many mainstream platforms such as Windows, Android and iOS, and is the most widely used communication software in China.