Someone in my family went to Canada to study, and he set up a calling card there. How does he call and send text messages to domestic mobile phones?

First of all, go to the convenience store to buy calling cards, usually 5 yuan each. After you buy it, you can dial the number of Toronto according to the following city number, for example, in Toronto, then enter the password, and then dial the domestic code 0 1 186+ area code (the area code should be divided by 0, for example, Shenzhen is 0755, just dial 755).