I am going abroad soon. Can I still call and send text messages when I am abroad?

Of course. If you are going abroad for a long time, it is not recommended to open roaming function. You can change the local calling card directly, but you still need a low handling fee. Foreign numbers may not receive the verification code of domestic websites and apps. You can download voice calling software. After using several models, it's good to find the worry-free line. Calls in China can also be answered for free. I think it is more practical to receive SMS with my original domestic number, so I don't have to worry about the verification code.