An economist says he doesn't expect the Commerce Commission's final decision on the price of parts of the copper network to differ greatly from its original proposal.
The Commission announced in December a proposal to cut the price Chorus - the owners of the copper network - could charge for it by about 25%.
It will announce its final decision on the price of one part of the copper network known as unbundled bitstream access (UBA) on Tuesday 5 November.
The Government has earlier said a cheap copper network could stop people from signing up to the ultrafast broadband network currently being rolled out.
Director at economic consultancy COVEC, John Small, says the Commission could raise the price from its December draft, but not by much.
COVEC is a member of the Coalition for Fair Internet Pricing and says the fibre network will be a superior product to copper and the two shouldn't compete.