Firstly, B*Cat/Weaver ..... cheers lads.
Now then, back to gazaai ..... if you go back through Kitz forum over many threads, you will see how you are pretty much taking a gamble with an engineering visit !!.
Openreach's mandate is for the
Broadband Engineer to perform 3 tests ....... a
Pair Quality Test (PQT ..... does as it says on the tin, tests the quality of the pair of wires from your premises back to the Exchange), a
VDSL Close-out test (This is a 5-minute test that logs onto the ISP server and basically transmits and receives data whilst looking for FEC/CRC), and finally an
Eclipse Test (This is basically to test the low-frequency phone part of the circuit. However, the majority of Broadband faults will see the Eclipse test incorporate a secondary test called CIDT. This 'pings' the router at different frequencies and then gives a test result. The CIDT is great for a HR-type fault, but not 'Bridged Taps').
Alas, all 3 tests mentioned above are unlikely to show a 'Bridged tap'. As I've mentioned earlier, our WHOOSH GEA remote test-bed is very, very good at determining
if there is a 'Tap' on a circuit. This same test will have been carried out when you raise a fault, and will be on the engineers notes to say whether one has been detected.
As I've also said many times previously, the tests we perform will identify 95% of fault conditions no problem, it's the other 5% that cause the most consternation.
Add to the mix the fact that you wont know what engineer you're going to get, experience really does count in bundles when dealing with broadband faults. Bearing in mind we are constantly under relentless pressure to 'move on', if the 3 tests outlined above all pass, and you are within the estimated speed bandwidths ........ then a large percentage of engineers would probably close the job off as 'No fault found', and you will be charged.
The only hope you've got is either the tests do show a fault, or you get an engineer who knows what a 'Bridged Tap' is and is willing to look at the Cabinet even if all tests do pass.