According to the company, custom remediation is used for premises that need to have long cable runs replaced, involve construction work, or need to be redesigned to move to another technology.

“NBN Co aims to resolve 90 percent of cases within 2 years of opening. This timeframe allows NBN Co to conduct detailed investigation, and custom design and build works on a case-by-case basis to remediate premises,” the company said in response to Senate Estimates Questions on Notice.

NBN added it had 713 custom remediation cases awaiting resolution, and had completed 10 cases.

In another question, NBN said around 7.6% of its FttN services were unable to reach the mandated 25Mbps minimum speeds, however some lines were in the coexistence period where FttN connections ran slower due to needing to continue support for legacy services over copper, such as ADSL, during an 18-month migration window.

“The actual experience of customers using the network, can be impacted by other factors such as their in-home set-up and equipment,” NBN said.

“Where the network is not capable of providing the minimum wholesale download speeds after co-existence has ended, NBN will take action to rectify any issues in its network so that minimum standards are met.”

Previously the company said in August 2017 that 6% of FttN connections could not reach 25Mbps.

NBN added it was running speed assurance trails for FttN connections that were deemed at risk of not hitting 25Mbps, with the broadband wholesaler saying that if a line suffered a 20% drop in downstream or upstream performance, then the retailer could log a fault for NBN to investigate.

Earlier this week, the NBN disclosed it had almost doubled the total amount of copper it has purchased since October 22, 2017.

As at 19 February 2019, NBN Co has purchased 29,460km of copper cable, which has typically been used for the link between existing pillars and new nodes.”, the company said in response to a Senate Estimates Questions on Notice published this week.

“A significant proportion of this figure is also due to FTTC network construction for short extensions of copper lead-in cables to the FTTC DPU location.”

The company also revealed that less than half of the premises in its fixed wireless areas had taken up such services, and fibre-to-the-node (FttN) uptake was tracking lower than the company needed to meet its financial goals.

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