Internode's Extreme SHDSL (Symmetric High-speed Digital Subscriber Line) is a copper-based service that delivers Internet access from five to 40 Mbps.
The service is targeted at businesses that have outgrown their ADSL2+ Internet connection, but find optical fibre Ethernet alternatives too expensive.
Creator Tech consultant Peter Pain came up with the idea of launching an Ethernet service on existing copper tails with Internode at the beginning of 2008.
Once the idea grew momentum, the company worked with the Internode team to look at its requirements, and what its suppliers need.
"The concept is brilliant in its simplicity," said Pain.
"It's a data service that runs over your current copper network, and has the same speeds whether you are sending data out or receiving it.
"There must be hundreds of companies and other organisations currently stuck on an asymmetric service or an expensive legacy leased line who would benefit from this."
Initially, Extreme SHDSL is available across the Adelaide Central Business District with plans to extend across other cities in Australia.