I've tried this and it tells me it's cabinet 37 on the Penn Exchange but other than that it just gave the same information as before. I've email'd BT Infinity to see if they can shed any light on it for me.
And is cabinet 37 the one you are connected to ? If so then there is no fibre cabinet planned for that PCP.
Which Penn exchange are you on ?
Exchange Search Results
The exchange that I'm connected to is Penn Wolverhampton