Optus IP Centrex offers businesses convergence of voice and data communications, according to an Optus release, which are able to be managed from the Optus exchange.
The product became commercially available yesterday following an extensive trial period dating back to late last year.
Optus managing director, Peter Kaliaropoulos, said he expects the product will create significant price cuts in the VoIP market.
"Customer organisations no longer need to buy and maintain costly PBX equipment -- they can focus on their core business and leave it to Optus to manage their desktop telephony," said Kaliaropoulos.
Optus IP Centrex allows users to customise their own features, which include multimedia services such as videoconferencing, document sharing and unified communications, according to Optus.
"Our packages are targeted at simplifying service configuration and providing customers with a greater value proposition. Cost effectiveness is often touted as being the main barrier for businesses from adopting new information technology -- but Optus now provides a solution that breaks through that barrier," said Kaliaropoulos.
Optus is aiming to capture one third of the Australian business and government market with it VoIP offering said Kaliaropoulos.
"We believe our IP Centrex solution is more mature than any of our competitors' solutions and it will capture a large chunk of the market as businesses realise convergence is the way of the future," he said.
The product is enabled by Nortel Networks Sucession IP telephony and runs over Optus' Multiprotocol Layer Switching.