AFAIK the KBD suite used by the ISP's are now classed as intrusive - certainly when it comes to GEA.
It would appear that as a result of in-equivalence of available tests between BTw based and the 'LLU' based SPs, the LLU type ISPs kicked up a bit of a fuss and as a result Openreach redesigned a lot of their tests. There was a stupid situation whereby for a short while that even OR Engineers as well as BTw ISPs were unable to perform any of the old WOOSH tests until the system was overhauled.
![Sad :(](https://forum.kitz.co.uk/Smileys/kitzemotes/sad.gif)
From what we can gather the old & non intrusive WOOSH (
Wholesale
Operative
One
Shot test)?, was replaced by 2 new systems:-
~ KBD for ISPs. Under the new system all GEA line tests run by ISPs are definitely considered intrusive.
~ WHOOSH for Engineers. Openreach engineers are still able to run the non-intrusive test via their WHOOSH system (Note the additional 'H' but we have no idea what the acronym stands for)
We had a conversation
here as to why line tests run by the ISP's suddenly started being intrusive. There are however strict instructions that the ISP must perform a KBD test before they can report a fault to Openreach.
![Sad :(](https://forum.kitz.co.uk/Smileys/kitzemotes/sad.gif)