One out of seven companies in Australia have already deployed some form of enterprise VoIP system, and the self-implemented VoIP model is still the most popular, according to a recent study.

Like many incumbent telecommunications carriers around the world, Telstra has been hearing a growing chorus of voices lately. And the voices have been anything but friendly.

Perth-based ISP Datafast Telecommunications Ltd (ASX:DFT) has launched a long-distance VoIP telephony product which enables customers to make STD, IDD, and calls to mobiles using existing telephone equipment.

SkyNetGlobal Limited ASX (ASX:SKG) has announced an OEM agreement today with VoIP product vendor engin for all its W Home Internet-enabled buildings.

Worldwide next gen voice product revenue totaled US$493 million in Q105, down 8% from Q404 but up 40% between Q104 and Q105, and is forecast to grow to US$5.8 billion in 2008, according to Infonetics Research's quarterly market share and forecast service, Service Provider Next Gen Voice Equipment.