Customers of Telstra and its subsidiary broadband provider, Belong, that upgraded to higher-speed NBN plans will be proactively contacted if they are not getting the maximum speed available under the plan.

The NBN Co, the company rolling out Australia's broadband network, has questioned the need for any regulatory intervention into its wholesale service standards at this time as, in its view, the ACCC's draft decision on these aspects had not provided any evidence of market failure.

Australia's second biggest telco Optus has welcomed the draft decision by the ACCC stemming from its NBN wholesale service standards inquiry, saying that the inquiry should hold the NBN Co to account for service standards expected by retail service providers and end-users.