Telecom cards can't send and receive short messages.

SMS service is not enabled on the mobile phone. You can contact the local manual customer service or open it in the local business hall. This function is not set or the SMS center number is set incorrectly. If it is set, the signal will be weak or no signal or the battery of the mobile phone is insufficient, which will cause the information not to be sent normally. Because the system is busy, especially during the peak period of sending short messages on holidays, it is suggested to try again later or avoid the peak period.