Why can't Harbin Unicom 38 yuan Package inform the remaining traffic by SMS?

If you have handled the traffic reminder function, the system will send the corresponding SMS reminder when the threshold is triggered. Under normal circumstances, you will be reminded by SMS when your package traffic runs out. If there is a delay or no SMS reminder, it is not excluded to continue to use traffic data. At this time, you can't monitor the traffic you use in real time, so you need to disconnect the network and send the data back to the system for statistics. SMS reminder is only an auxiliary function. It is suggested that you can send CXLL to 100 10 to inquire about traffic usage.

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