How does Samsung mobile phone delete call records in batches?

In the call record interface, click the touch key in the lower left corner, and there will be a delete option. Click it, and the rest will be in your call record interface. A box will appear on the right. Click the box you want to delete, and then click the upper right corner. Delete? If you want to delete them all, click on the top box, and then click on the top right corner? Delete.

1 refers to all kinds of information initiated by fixed telephone users and mobile telephone users, such as calling, called, calling short messages, called short messages and roaming calls, which are recorded in the operator's switch.

2. Call records provide a basis for operators to charge, and also provide a basis for users to verify their calls. There are usually three ways to query the call records, that is, online business halls and mobile phone business halls in the last six months (including the current month), or offline business halls of major operators. Before querying, you need to confirm that you have the ownership and right to use the searched number, otherwise you can't query. When inquiring online in the business hall, the owner needs to bring the original ID card for inquiry.

3. Online business hall inquiry: log in to the online business hall of the operator to which the number belongs, enter the number and service password to log in, and select "Call Record Inquiry". The website will send SMS verification code to the checked number. After verification with the verification code, you can query the call records and provide downloading and printing.