Advice on a noisey line?

[Technical Ben]

On a BT line I have some voice noise and it's now reduced the internet speed to sub 1meg. Still getting uploads at normal speeds for ASDL2+. Just had the overhead cable to the telegraph pole replaced as the line was completely silent 3 months ago (though strangely the internet worked).

Is there anything more I can do before passing this over to BT? Don't want to get charged if there is a simple fix here, though as always I've checked with the master socket, and there was still noise.

[Technical Ben]

Amazingly BT were ok with this one, so no worries. Previously the line was dead, yet it was murder to get them to come out and sort it. But mention a little noise/crackle on the line and they rush out. 

[Clive]

When I had that it was caused by corroded connectors inside the little BT box on the windowsill.  They changed it and my speed rocketed from 104kps to 6 meg. 

[Technical Ben]

I'm expecting the same really. Property had flooding just over a year ago, so the box or feed to it might be old and rusted. As said, everyone else down the street seems to have had new connections, all the way to the face plate. But for some reason my friend got missed out. 

[Technical Ben]

Well, the usuall happened. Someone tried to phone and could not get through. Line was dead... so they called BT again, but not with me their to talk them through the hoops. Turns out engineer never turned up, and as I was not there to "help" with chatting to BT, the call centre just claimed it was their phone/battery/filter that must be dead...  Even though their phone connected to the test socket now sounds like a cat dancing on tin foil.

So, I'm rushing over tomorrow morning with a spare filter, my "test" phone and some stern words written down so they stick to the script to BT, instead of BT writing the script for us to dance to.