Is there any software that can host the secondary card in China?

you can try the worry-free line app, and now the function of worry-free line is getting better and better. Just download the app on your mobile phone, and then host the domestic mobile card in it, so you can receive information and phone calls for free. The app doesn't have to run in the background all the time, and calls and text messages can be directly awakened. It can be used both at home and abroad, which is very convenient.

for me, the most important function of the secondary card is to receive the verification code. Because of frequent business trips, I often go to a place to register some software or something, and I need to use the verification code. Sometimes it's too bad that there is no signal and the verification code can't be received. On the worry-free App, this function is completely no problem. Just clicking on the verification code will pop up the window, which is not much different from the mobile phone that directly plugs in the card. It's really conscience, so if you want to answer the phone and receive text messages, worry-free line can completely satisfy you.