Chorus wholesale charges have two components, called UCLL and UBA. Telcos which have invested in what is known as unbundling only have to pay the UCLL portion and not the UBA part of the wholesale charges.
Unbundling involved companies like Slingshot putting their own equipment in telephone exchanges, allowing them to offer better broadband and phone services to customers for less, Callander said.
However, two of the pricing options being considered by the Government would increase the UCLL portion of Chorus charges by between $5.05 and $10.32.
Callander said this would remove the incentives to unbundle exchanges or to invest in copper-line technologies such as VDSL which offer users much faster speeds. "As people have less desire to invest in copper-based services or wealth is transferring from [retailer providers] to Chorus, where's the money going to come from for [retailers] like ourselves to innovate and add new services?"
Orcon chief executive Greg McAlister said the Government proposals were a "tax on New Zealand households" to fund the fibre rollout.
"Our costs are going up no matter which way you look at it ... I believe it will reduce innovation in the market, [our] margins are so slim now," he said.
Unlike Slingshot and Orcon, Telecom welcomed the Government's review of the pricing framework. Telecommunications Users Association chief executive Paul Brislen said Telecom was in a different position because it owned a voice network, known as the PSTN. This meant they didn't need to wholesale as much off Chorus and, in effect, their costs would stay the same under the proposals, he said.
Chorus' share price, which rallied by almost 5 per cent on the Government's announcement this week, dropped back 3.3 per cent yesterday, closing at $2.93.