Why is texting delayed?

The short message sending system is a professional short message sending system. The short messages submitted and sent through this system are not sent directly from point to point, but are first submitted to the pre-server of the short message centers of China Mobile and China Unicom through the Internet, and then distributed to the target users' mobile phones through the short message centers of China Mobile and China Unicom. Because there are a large number of short messages to be sent every day in the pre-server of the business short message center of China Mobile and China Unicom, when you submit the information, the network may be busy or waiting in line, so sometimes it will cause delay and cannot be received immediately. We suggest that customers should publicize and notify in advance when sending short messages in time to avoid inconvenience to your work or business due to busy network or crowded information.