A lot more people need it than would otherwise have been the case due to the use of contractors .
So I read a few rumours that G.INP is going to be disabled on upstream for all lines now!Meh. Very few people need it so it seems a reasonable solution to me.
Also it's a poor compromise because the largest customer - BT Consumer - supplied the wrong sort of Homehub - HH5A's - to customers on Huawei cabinets.
So, it is needed because of bad installs but no-one can have it because of the uncontrolled issue of free Homehubs.
I have to say that I disagree there.
Upstream problems have never been worse than downstream ones. DLM becomes involved considerably less on the upstream side.
And the *impact* of packet loss on upstream is felt even less: The main issue that BT wants to solve with G.INP (loss of packets that don't otherwise get retransmitted - particularly in video streaming) just doesn't happen upstream.
Don't get me totally wrong though ... a solution that kept G.INP bi-directional would be an improvement, as would deployment of capable hardware. It's just that turning G.INP off upstream isn't as terrible as you make it sound.
BTW. As far as I can see, the issue isn't as simple as hardware that doesn't support G.INP upstream. Some modems, using the same "limited" chipsets, have been "fixed" by firmware upgrade. If the issue remains long-term for some models, then something more subtle has gone wrong.