It is one of the most popular telecommunications companies in Australia.

It offers mobile, phone and Internet services. Moreover, It gives you a good prices especially for the international calls.

Also you can through their website recharge, set up your plan and get technical support.
I am using Optus since I arrived to Australia, I have not faced any problem and I am very happy with the services.
From time to time they send you massage to be updated with their new offers. The offers seem to be very useful for me.
To see the nearest pinch see Optus website.