The traffic plan is updated every month, and the traffic information will be automatically corrected by SMS. What does this mean?

This means that the traffic packet will be updated every month and the system will correct it. The traffic packet is updated every month, and the traffic information will be automatically corrected by SMS. This sentence means that the traffic packet will be updated every month, and the system will automatically send SMS to correct the traffic information, which means that the user's traffic packet will be updated automatically every month, and the system will inform the user of the latest traffic information through SMS to ensure that the user can know his traffic usage in time.