It's a different profile - 17a instead of 8c.
Thanks BatBoy - I see then they have never used the full 30Mhz the spec allows and are switching from 8Mhz to 17Mhz bandwidth use - cheers for the insight,
I wonder if they will ever use Vectored VDSL
What software do BT use on their Dslams/Msan etc? not ASSIA by anychance is it?
sorry for robbing OP's post