A nice little potted history of Australian telecommunication privatisation failure:
A closer look at the record tells a different story. Technological progress in telecommunications produced a steady reduction in prices throughout the 20th century, taking place around the world and regardless of the organisational structure. The shift from analog to digital telecommunications accelerated the process. Telecom Australia, the statutory authority that became Telstra, recorded total factor productivity growth rates as high as 10% per year, remaining profitable while steadily reducing prices.
But for the advocates of neoliberal microeconomic reform, this wasn’t enough. They hoped, or rather assumed, that competition would produce both better outcomes for consumers and a more efficient rollout of physical infrastructure. […]
The failures emerged early. Seeking to cement their positions before the advent of open competition, Telstra and Optus spent billions rolling out fibre-optic cable networks. But rather than seeking to maximise total coverage, the two networks were virtually parallel, a result that is a standard prediction of economic theory. The rollout stopped when the market was fully opened in 1997, leaving parts of urban Australia with two redundant fibre networks and the rest of the country with none.
The next failure came with the rollout of broadband. Under public ownership, this would have been a relatively straightforward matter. But the newly privatised Telstra played hardball, demanding a system that would cement its monopoly position in fixed-line infrastructure. The end result was the need to return to public ownership with the national broadband network, while paying Telstra handsomely for access to ducts and wires that the public had owned until a few years previously.
Meanwhile the hoped-for competition in mobile telephony has failed to emerge. The near-duopoly created in 1991, with Telstra as the dominant player and Optus playing second fiddle, has endured for more than 30 years.