The telecommunications provider also saw its half-year after-tax income jump to AU$1.39 million from a AU$10.5 million loss.
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Fibre broadband continues to take on more of Chorus' total revenue as it continues to phase out copper-based services.
With Vodafone scrapping copper landlines, customers will transition to voice over fibre, wireless, UltraFast HFC, or copper broadband.
Chorus' fibre network will receive a finalised valuation at the start of 2022 to determine how much revenue the network can earn for the next three years.
Chorus CEO JB Rousselot said ComCom's draft valuation of his company's fibre network contains expenditure cuts that are not reflective of the market.