How to open the shredder of telecom call records and what is its function?

Car owners can go to the physical business hall, online business hall or 10000 for manual handling with valid certificates.

Detailed list crushing business is a special service business launched by China Telecom. The function of this service is to crush the user's voice or SMS list, that is, no one can query the user's voice or SMS list at the business front desk (including business hall, self-service printer and online business hall). After applying for this business, you can't query the detailed list after the order date, but you can query the detailed list before the order date, and you can query the detailed list information since the cancellation of the business.