The company rolling out Malcolm Turnbull's model of broadband insists it is not replacing the legacy Telstra copper with brand-new copper lines, but it is still buying up approximately 1800 kilometres of copper just to last the next six months.

As part of the shift away from Labor's fibre-to-the-premises model of the NBN, the company will be using existing Telstra copper lines that go from the street to each premises, and will only upgrade the copper to fibre up to a box, or node, on the street outside the premises.