How does China Mobile use SMS to handle family numbers?

Until 10086, valid for 24 hours;

Cancellation: send "QXQH" to 10086, apply in the current month and take effect next month;

Add family number: send "zjqh < family number >" to 10086, valid for 24 hours;

Change the family number: send "bgqh & lt old number > & ltSpace >< new number >" to 10086, which is valid for 24 hours. 1 yuan check the family number: send "CXQH" to10086;