How to charge for studying in Australia and receiving domestic text messages?

I'll teach you my method. Keep the domestic number, change it to the cheapest package, then download a Fetion client in the notebook, then add friends who often send and receive messages to Fetion friends, and pay the basic mobile phone fee before leaving. Then in Australia, as long as you open the computer client, you can send messages with friends at home for free. . Recharge 200 yuan every time I return to China. In another two years, I can send messages to my mother and classmates by Fetion for free.

As for making phone calls, my family and I have been using QQ voice or video, which is much better than buying a card to make phone calls.