telstra and optus are in trouble

Our Voice over Internet (VoIP) network is now one of the largest in Australia with more than 30,000 users. Since launching in August of last year, our VoIP service has clocked up more than 13 million minutes of call time - slashing the phone bills of iiNet customers.

IINET also offers line rental and never put emphasis on making alot money out of the calls as it offers VOIP packages with line rental now (http://www.iinet.net.au/products/phone/). Optus and Telstra on the other hand do and VOIP is going to kill their revenue alot.