Last update 24 April 2011
1) NTE5, (pre the OpenReach-logo’ed one which filters the ring wire but looks the same apart from the logo);
2) Older master sockets, and extension sockets.
See my FTTx page for the OpenReach VDSL2 filtered faceplate.
The new BT External NTE is shown here, copied from BT SIN 470 which has a full description:-