Would be really interested in seeing our maximum sync speed before committing to any NBN plan. I have a VDSL modem that I can plug in. I know it can tell me the maximum sync speed on an active NBN line, but what about an inactive one? Potentially useful info: This is a brand new house, so all new copper. We knocked down the old house (it was a rental property) but I don't know if the tenants had ever hooked up NBN. The green NBN box is literally outside our property.