Text messages are always blocked these days. What is the reason?

If you don't delete the messages in your inbox before suddenly receiving many messages at the same time, it has nothing to do with your mobile phone.

Receiving short messages is not timely, and many messages are often received at the same time. This is a term in mobile communication, which is called "SMS congestion". Because SMS is a signaling link, and the signaling link itself is responsible for all signaling transmission in the network, it is only a part-time transmission of SMS. If the signaling link capacity is not enough, the short message will be blocked at the exit of the short message center, and once the signaling link is empty, it will be sent together.

Another possible reason is that the CAP value of SMS processing center is low, that is, the processing capacity is low and it is too busy.

Operators can monitor users' SMS indicators and adjust the processing capacity of signaling links and SMS centers. This phenomenon will generally recover soon.