Cannot receive text messages sent by Fetion to mobile phone

If you don’t know on the first floor, don’t talk nonsense. Fetion is an instant messaging service launched by China Mobile. It does not distinguish between online and offline situations. There should be two situations. One is that your friend has set your number on the mobile phone blacklist. (Call Guard). Check the settings of her mobile phone. Second, it may be that her mobile phone is an old-fashioned single-band GSM mobile phone. The principle of GSM is that the network operator stores information in the information center and then queues up to send it. If the amount of information is large, the information may be lost after more than one day. The mobile phone uses GPRS signal (instant transmission of information packets). The sending and receiving method is not correct, of course, it cannot be received. So her mobile phone may be the reason, so she can only change to a better dual-band mobile phone. I hope you can solve the problem of communication as soon as possible.