Internodes VoIP cost's seem a bit expensive to me...
http://www.itwire.com/content/view/20243/1151/
Internode extends ADSL2+ reach but can you afford it
NakedExtreme includes the company's NodePhone VoIP service, so though NakedExtreme costs $10 more than Internode's regular ADSL2+ plans, users can save between $20 and $30 as they no longer need to pay line rental.
NodePhone call costs are 18c untimed for national calls and 30c per minute for calls to mobiles. Calling 13 or 1300 numbers costs 27.5c untimed. International calls involve a 15c flagfall and per-minute charges staring at 5c. These rates are generally lower than Telstra's and Optus's rates, though caps on certain call types (eg to mobiles) means that is not always true.
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