Unicom sends cxll to 100 10 every 20 minutes.

If the mobile phone automatically sends CXLL to 100 10, this instruction is generally an instruction for Unicom to query the traffic situation. It is possible that your mobile phone has installed some traffic correction software and set automatic correction, so it will automatically send this short message to 100 10 to correct the traffic. I suggest you check the software settings on your mobile phone for related operations.