How is it that the mobile phone automatically sends short messages to China Unicom?

This situation may be caused by the setting of traffic monitoring software on the mobile phone (such as 360 Mobile Guardian, Tencent Mobile Manager, etc.). )

Some traffic monitoring software will automatically send short messages to Unicom 100 10 to obtain the remaining traffic information, so there is such automatic transmission.

If such software is installed, it is suggested that the traffic monitoring software can be turned off to see if it can be restored.