check for BIGPOND on google. its australias biggsest ISP. I am a technical support specialist with them.. so when I say sip has issues. I mean, as a platform for voip its ok. but then again its short comings include poor management of bandwith and poor programming to allow for priority of voice data. Altogether it doesnt do a thing on qtels adsl anyway. Either way. voip card resellers support voip providers with apps which overcome the qtel barrier and offer quality without much tinkering with software. Most customers are here for a solution and not for a problem.