How does China Unicom set up CRBT?

1, sending short messages from 50 1 to 100 10, and receiving short messages costs 0. 10 yuan/piece, which is not included in the monthly short message package;

2. Call the customer service number 100 10, and ask the customer service lady to open it for you, free of charge;

3. Call 10 150 to open the phone, and charge the normal call fee, which is not included in the monthly call fee;

5 yuan/month is charged for opening ringtones, and there is an additional charge for downloading ringtones (some are free).