What's the difference between Unicom's secondary card and the main card?

Equity differences, expense differences, bill management differences, etc.

1. Equity difference: the secondary card is the subsidiary number of the main card, and usually only a part of the call, SMS and traffic resources of the main card can be used. The main card is the main body of opening the mobile phone number and enjoys the complete rights and interests of calling, SMS and traffic.

2. Cost difference: Sub-card users usually only need to pay the extra monthly fee for the sub-card, and the charges for calls, text messages and traffic are borne by the main card. The main card user needs to bear the whole package fee, including the call, SMS and traffic charges of the main card and the auxiliary card.

3. The difference of bill management: the user of the secondary card can only view the call, SMS and traffic consumption of the secondary card, but can't view the detailed bill information of the primary card. The main card user will receive a complete bill, including calls, text messages and traffic consumption between the main card and the auxiliary card.

China United Network Communications Group Co., Ltd. (hereinafter referred to as "China Unicom") was formed by the merger and reorganization of the former China Netcom and the former China Unicom on June 6, 2009. The company has branches in 365,438+0 provinces (autonomous regions and municipalities directly under the Central Government) and many overseas countries and regions, and more than 65,438+030 overseas service access points, with a modern communication network covering the whole country and reaching the world. The scale of "Big Connect" users exceeds 900 million.