Why not send a message about the arrears?

According to the information provided by you, under normal circumstances, our company will issue relevant early warning information before your number is completely down or semi-down. If you don't receive the relevant message, the following may happen:

1, you can check whether the mailbox is full first. If it is full, please delete some information.

2. If you still can't get it after deleting it, you can change the machine or card to see if it is a hardware factor.

3. After eliminating the above reasons, you can try to test whether it can be received in other places to see if it is the reason for the weak local signal.

If the above problem does not exist, please contact the local manual customer service to handle this problem. It is recommended to contact the local Unicom customer service for details.

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