What is the reason for the delay in receiving SMS by mobile phone?

The "delay" of short message reception refers to the delay of short message reception caused by the failure to send the 1 short message in the short message center and the need to send it through the short message retransmission mechanism. For users, the main phenomenon is that short message users can't receive short messages in real time, and the specific receiving delay time is related to the forwarding mechanism of short message center. The reasons for the "delay" in receiving SMS are as follows: (1) After the SMS memory overflows, SMS cannot be received normally, and SMS sending will be delayed after clearing the SMS space. If the user can't clear the SMS memory space in time, the mobile phone will still be in the "memory overflow state" after repeated forwarding by the SMS center, resulting in the "delay" of SMS reception exceeding 1 hour. (2) The mobile phone is turned off and is not in service area. Due to wireless reasons, coverage reasons and mobile phone reasons, the network cannot page users when sending short messages. It can also be said that the mobile phone is not in the service area. In this case, the short message center needs to send short messages through the short message retransmission mechanism. If the mobile phone is still "out of service" after repeated retransmissions through the SMS center, it will cause the "delay" of receiving SMS to exceed 1 hour. (3) Network problems In addition, network problems such as HLR, MSC and SMS center will also cause the problem of "delay" in SMS reception. However, compared with the first two, the "delay" of SMS reception caused by network problems is not great. (4) The mobile phone or user card is out of order, and the performance of the mobile phone or user card is poor, so it is impossible to receive short messages accurately and timely. Complaint handling: such complaints must be sent to the network maintenance department, and the operation and maintenance department will find the reason of the exchange party; For such complaints involving network coverage, we need to turn to wireless network optimization to find out the reasons. Thank you for your interest in telecom products. I wish you a happy life. If the above information can't solve your problem, you can also log in to Guangdong Telecom Mobile Mall () to seek help from online customer service, which is available 7X24 hours a day!