NetComm V200 VoIP Phone Adaptor from MyNetFone for $9.99 with $10 free credit and free express deliv
Basically it will cost you nothing since you get free $10 credit.
It comes on the whirlpool saver or neosaver Plans.
* Ideal for cable and ADSL broadband users and those with an existing modem
* Quality of Service (QoS)
* Make and receive VoIP calls from two telephone handsets simultaneously
* Two broadband phone lines and 3-port LAN switch
* Simple web based configuration
* Programmed only to operate on the MyNetFone service
* Includes FREE credit
* Includes FREE express freight anywhere in Australia
Also comes with 3 years warranty if u register the product online with netcomm ... otherwise it comes with 1 year warranty out of the box.