Telstra offer a great service called the 'Telepath OneNumber'. It makes a fantastic way of others remembering your
phone number for your
mobile,
home,
work or any other location.
Essentially all it does is
redirect your calls to any
number you specify, making contacting you much easier. It also has a
Message Bank, which is great when you are busy, or on the
phone.
You are also able to change your settings through their
web site.