First of all my friend's BT Bill has the item "One-off charges" £169.00p which plus VAT @ 20% of £33.80p becomes a total for this repair of £202.80p.
I note that this is in excess of the standard £130.00p for an Engineer's Visit. Is the £130.00p plus VAT or inclusive?
As for the faulty bottom half of the NTE5.
I checked it out and found that a) the pin of the plug which engages with the 'test' socket had surface debris on the pin which goes to 5 and also b) the soldered joint for this same pin was dry with lifted pcb foil. Since it appears that the bottom half of the NTE5 is the consumers, I re-soldered the joint and secured with Araldite. (Since this part is my friend's, I'm competent to do this; I am MOD trained and there were many of the RAF's aircraft flying around from Lightnings, Belfasts and Nimrods with my repairs, back in the 60's & 70's + quite a few MN ships floating rather than flying...)
Interestingly the lower half of this failed NTE5 has the series inductor in the ring-wire, so could not have been that old. However, he tells me that the NTE5 that failed is about 18 months 2 years old, so I cannot be certain that this is a new lower half.
Also, he told me how the OR engineer was using an IDC tool when he replaced t. This seemed strange since there are no outgoing extensions connected to the NTE5, but further discussion revealed that the overhead line(s) feeds an adjoining premises and there is a junction box between the drop-wire(s) and both his NTE5 and that of the other property which, lucky for them, did not suffer any issue.
Whilst the enlightened few may know where to obtain the lower half of a NTE5 from, the average person would likely get ripped off by BT/OR for a considerable charge.
I can confirm that my friend had NO fixed internal wiring, ie connected to pins 2,3,5 of the lower half and that all that was connected was an ADSL filter plus one phone and his modem router.
"As I hurtled through space towards re-entry at twice the speed of sound the only thought in my mind was that this craft was entirely built by the lowest bidder!” John Glen, Astronaut
Andrews & Arnold FTTC
DrayTek Vigor 2920Vn