After a VOIP discussion in Ventrilo with a fellow teammate and racer, we've narrowed it down to packet loss. Quality shows how many packets actually get to your connection, ping is just how fast they do. Is packet loss worthy of a call to tech support?
And another thing. We have 2 BT terminals in our flat. I paid for a Virgin phone line, and received a quickstart kit because I'm changing the number and keeping what I have. I'm assuming it should (I received the kit 2 weeks ago) be switched on now, correct? I haven't actually connected a phone up to see whether I get a dialing tone or not because I don't have one! Asda here we come!