Telecom, the country's biggest internet and phone company, says it supports intervention on copper prices if the Government believes there is evidence the rollout of its $1.5 billion ultra-fast broadband network is in danger.
This is poles apart from rival Vodafone, which says Government intervention in the copper market is corporate welfare for lines company Chorus.
Telecom, in its submission to the Government on the issue, said the debate over copper pricing was distracting the industry and customers from how to best take advantage of fibre, which is being deployed under the UFB scheme.
Telecom said that there was uncertainty over how the Commerce Commission's regulation of copper prices would impact Chorus's ability to complete the UFB rollout.
Chorus - which split from Telecom in 2011 - is responsible for about 70 per cent of the UFB deployment.