What alot of people dont think about and most Telstra employees dont know about is that they are just automated modems. If you have a driver that recognises them you can set them up literally like a standard dial up modem. You enter telstras number (which staff also dont know), then your using name and password and "dial up". One way to get around the sisue when telstras software doesnt work for you.
I learnt this way when Vista first came out and wasnt "supported" by telstra so none of the bloody things worked.