Former Zultys business development director for the Oceania region Tony Warhurst told Computerworld Australia he resigned just over three weeks ago because of uncertainty.

"This came as a shock to me," Warhust said about the Zultys sale. "I was aware it was requesting more funding but when that didn't come through there was no money left."

Warhust said the uncertainty surrounding Zultys' future had "dragged on" for about three months and the decision kept being postponed.

Founded by entrepreneur Iain Milnes in 2001 with about US$65 million in venture funding, Zultys carved out a new market in 'out of the box' VOIP systems and handsets challenging more established vendors like Cisco, Nortel, and NEC.

The company also had its fair share of success in Australia, with enterprises including Isuzu, Cambridge, 4Logic, and Victoria's Health Services Union jumping on board.