Wholesale always make such a point of 'we only do the coppery bits' that you kinda expect the toolbox to include nothing more than a wire cutters and a stamp down tool!
Ha ha , I see where you're coming from .... as far as I'm aware though, '
Wholesale' do the backhaul bit (Completely fibre-based), not the 'coppery bit'. That's left to us ..... Openreach. Both are BT 'Lines of business', but completely separate from one another.
As we all know, it's the 'coppery bit' that determines the success of a ADSL/VDSL (FTTC) circuit, which is why there was a programmes rolled out a few years ago to bring the standard of testers up to par. However, the SIN tests which were agreed by all parties when unbundling came to fruition, isn't as good as it maybe could be on some circuits.
That's not for me to debate though and I fear we may be wandering OT slightly. This was just for awareness purposes.