The secondary card with sudden traffic cannot be used.

The main card and auxiliary card of telecom unlimited main and auxiliary card package can surf the Internet indefinitely. You can restart your phone, or try a telecom version or a full netcom version.

Through the primary and secondary card services, the secondary card can share the basic package of the primary card, including mobile Internet traffic, the length of national long-distance voice calls, the number of SMS and MMS, and the length of WiFi. Among them, the mobile internet traffic can be the data traffic generated by users surfing the internet through mobile phones or using Internet Star and Tianyi video services.

Extended data:

Precautions:

Dual-card dual standby single call means that the mobile phone can insert two cards at the same time, supporting two different network modes, and the two cards can stand by at the same time. However, when 1 is stuck on the mobile phone, other 1 cards can't get in, and you will be prompted on the mobile phone.

Dual-card dual-standby dual-call: it means that two cards can be inserted into the mobile phone at the same time, supporting two different network modes, and both cards can stand by at the same time, but when 1 is stuck in the mobile phone, the other card will also display an incoming call and can be transferred. If you have two mobile phone cards, you'd better buy a mobile phone with dual cards, dual standby and dual communication.

Baidu Encyclopedia -4G National Package Card