How does China Mobile send SMS to give away traffic?

After 00: 00 on June 5th, 65438, customers can directly edit the short message "LLZZ+ the other party's number" and send it to 10086, and choose the gift level according to the reply information. You can donate once a month. After the donation is successful, the traffic transfer fee of the donation number 2 yuan/time will be charged, and the phone bill will be deducted directly. '