ubergeeknz:sofistek: said that they do supply a NetComm modem but not that model
You were told wrong :) But of course ours has custom firmware, and we auto-provision to make things easy for customers. Internally we call it "Genius White".
I am however interested as to why you would go out and buy one rather than just re sign with us...
Mmm, I asked the question several times about this modem. The girl on the end of the phone said they did use a NetComm modem but not the NF4V (I didn't ask about which model they supported but the downloadable guide is for a different model; NB6?). However, she seemed to be able to bring up the different admin screens, by the sounds of it, so maybe she was lying.
Good question as to why I bought one. I guess I assumed that, not having a supplied one originally (my son set it all up when he lived with us and switched between two Linksys modems), I wasn't on a plan that provided a modem. But, anyway, this allows me to switch to other providers more easily (or maybe not).