Difference: 1. The main card and the supplementary card are classified as primary and secondary cards, but the mobile phone numbers corresponding to the two cards are different; 2. China Unicom main card has the function of recording consumption, while China Unicom supplementary card There is no consumption recording function, and the excess consumption settlement of the secondary card will be all calculated on the main card; 3. China Unicom's main card has comprehensive functions, but the secondary card does not have the function of receiving and sending text messages and making calls, and the secondary card can only enjoy data and Internet access functions. .
The operating environment of this tutorial: HarmonyOS 2 system, HONOR V30 mobile phone.
China Unicom mobile phone card is the choice of many users. Users can choose packages according to their own needs. Some friends have also opened a secondary card. What is the difference between China Unicom's secondary card and the main card? The following is Get up and take a look.
The difference between China Unicom’s primary card and secondary card
1. The difference between numbers:
Although the main card and the supplementary card are classified as primary and secondary, the mobile phone numbers corresponding to the two cards are different, and each main card number can only open one supplementary card business.
2. The difference in recording consumption:
China Unicom main card has the function of recording consumption. The user’s mobile phone All card consumption is recorded on the main card, and the user pays the main card. China Unicom's secondary card does not have the function of recording consumption, and all excess consumption settlements of the secondary card will be included in the main card.
The main card that applies for the supplementary card business needs to pay the consumption bill on the supplementary card together with the monthly settlement. When the main card of China Unicom is suspended due to arrears, the secondary card will automatically be shut down and will not be restored until the main card successfully pays the arrears.
3. Functional differences:Unicom’s main card has full functions, but the secondary card does not have the functions of receiving and sending text messages and making calls.
China Unicom’s data supplementary card is not equipped with the function of receiving and sending text messages and making calls. The supplementary card can only enjoy the data Internet function. Its Internet traffic package and tariff are the same as those of the primary card, that is, the data traffic used by the secondary card is the package traffic of the primary card.
Extended information
The connection between China Unicom’s primary card and secondary card:
1. The supplementary card is essentially a service function of the main card. The main card that activates the supplementary card business needs to pay a business service fee of 5 yuan/month every month. The primary card has the right to cancel the business and cancel the secondary card function at any time.
2. The primary card and the secondary card share traffic data. The secondary card only has the function of exchanging data traffic, but is not equipped with the function of independently opening traffic packages. The data consumption generated by the secondary card will be deducted from the data balance on the main card.
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