Caveat: this is info based on a quick chat with a BT WiFi engineer, backed up with random internet reading. It's set up in the router and BRAS, but it will onl

Caveat: this is info based on a quick chat with a BT WiFi engineer, backed up with random internet reading. It's set up in the router and BRAS, but it will only take that bandwidth away if you're watching IPTV. I should have used the word "allocated" :-) Something important to note - even if you see sync speeds on your DSL modem of 34.95Mbit down, you're likely to have a DSLAM profile set to something like 31Mbit. Most providers use profiles in the DSLAM to give you a consistent speed, rather than trying to squeeze the last little bits out of what is often quite a lossy line. So in reality your 20Mbit sync speed might result in an 18Mbit profile, of which 2Mbit is allocated for IP TV traffic.