Calls from Australia to another country are cheap and easy to make. You have many options:
Phone cards, which you can buy in any news agency, petrol station and some supermarkets. You just have to find the best option according to your country.
Skype and other apps available on mobile phones are the most popular choice. If you have an unlocked phone in your country it will work in Australia, you will have to buy a chip of one Australian companies of your choice when you get here.
he most popular companies in Australia are: TELSTRA, OPTUS and VODAFONE. A very important tip is before you choose the company is good to ask for people that live in the area where you are going to live about the quality and coverage offered, because unfortunately some areas depending on the company the coverage it is not good.