Would have been the third largest announced deployment of G.fast. Australia's National Broadband Network has decided to use DSL to bypass some of the cable network they bought from Optus. They are calling this FTTdp, which everywhere else in the world means G.fast. For unclear and probably political reasons, they are planning to use VDSL at much lower speeds. nbn has come way over budget, the cause of the problems.
The remedial work on the cable was getting expensive. The first reports spoke of 700,000 G.fast, but nbn was coy about the details. Petroc Wilson at CommsDay looked more closely; nbn is talking fast but not totally committing to it. The Register and I have since confirmed nbn may use slower technologies. The difference in cost between G.fast and VDSL should be modest, based on the bill of materials.
Whether VDSL or G.fast, I'm very surprised nbn isn't choosing to use the coax in place they bought from Optus, even if they aren't going DOCSIS. Australian press reports and the opposition party have long said there were expensive problems with the Optus system, but that's more likely electronics rather than the coax itself. For G.fast, coax has twice the reach, better performance, and a robust margin for interference.
"The results using coax were flawless,"