How to cancel a fixed-line hang-up message?

To cancel the on-hook SMS service, you can apply to the account manager, call 10000 or apply directly to the business hall for cancellation. Cancel the business in the current month and take effect next month. The business cancellation process is as follows: the user submits the business cancellation application, the business hall staff reviews and completes the business cancellation, and the business platform completes the business cancellation simultaneously.