Can I make a phone call with the supplementary card of China Unicom?

The secondary card is a secondary card that enjoys the package fee with the main card, and can be used for making phone calls, sending text messages, surfing the Internet, etc. , and the phone number of the secondary card is different from that of the primary card.

During use, the main card package has domestic call time, and the main card and the auxiliary card can enjoy the call time in the package. If there is no domestic call time in the main card package, the secondary card will be charged according to the standard tariff.