Can the primary card check the phone records of the secondary card?

The main card can't find the call record or SMS of the auxiliary card, because the main card is installed on a mobile phone and the auxiliary card is installed on a mobile phone. Unless you go to the local Unicom or mobile company to print out the detailed call records, you can view the call records and text messages of the secondary card. In addition, the main card can't query the call record of the secondary card, so it can only log in to the online business hall to query the usage of the secondary card. Although the main card and the auxiliary card can enjoy the call duration and traffic in the package, they are completely independent. The main card has an annual fee, and the auxiliary card also has an annual fee, which is generally about half of the annual fee of the main card. Most supplementary cards, like the main card, can also reduce the annual fee if they spend a certain number of times or a certain amount.