What's the difference between a mobile primary card and a secondary card?

The difference between mobile primary card and secondary card is as follows:

1, different numbers: Although the primary card and the secondary card are independent mobile phone cards, they use different mobile phone numbers. The mobile phone number of the main card is unique, while the mobile phone number of the auxiliary card is different from that of the main card, but it also exists independently.

2. Different packages: the secondary card enjoys the voice and traffic in the primary card package, so the secondary card cannot choose a separate package. The cardholder of the primary card can choose different packages, and the secondary card can only use the packages selected by the primary card.

3. Different fees: the main card charges the package fee, that is, the monthly rent of the selected package. The secondary card charges a monthly function fee, which is generally 5- 10 yuan/card/month. It should be noted that the monthly rent of the secondary card is deducted from the main card account. If the main card is in arrears and stops working, the secondary card will also be affected.

4. Value-added services are different: after the primary cardholder handles the secondary card, he will open related services for the secondary card, but not all services are handled by the secondary card. Some special value-added services do not have interoperability, such as website members, color ring tones, and automatic fee deduction services for some social software. These value-added services are still bound to the main card, and the auxiliary card does not enjoy the privileges of these services and will not be charged extra fees.

5. Different quantity restrictions: No matter whether it is the main card or the auxiliary card, there will be some restrictions on the quantity because they are all handled with the ID card of the main card holder. You can handle more than two secondary cards at the same time, and some users with special needs can even handle five secondary cards. There can only be one main card.

6. Different function restrictions: Under normal circumstances, the secondary card * * * enjoys most of the packages of the main card, but some packages will provide additional functions for the main card, but the secondary card cannot enjoy these functions.

7. Different privacy protection: Because the main card and the auxiliary card use different mobile phone numbers, the call between them is free, which helps to protect the privacy of both parties.