Wechat shows that the line is busy for no reason.

Set up do not disturb mode, unstable network connection, other technical problems and other reasons.

1. Set the Do Not Disturb mode: When the phone is set to the Do Not Disturb mode, it will not be able to answer the phone, and WeChat shows that it is busy or not answered.

2. Unstable network connection: Unstable network connection will lead to the disconnection of WeChat phone or the busy display.

3. Other technical problems: There will be technical problems on WeChat, which will cause the mobile phone to be unable to connect or display abnormality.