On a different circuit we had a crackly line. It was so bad we switched to VoIP.

This was a good move because we only use VoIP now, better dynamic range, no nuisance calls, noise free, more features, inclusive international calls and cheaper than BTs anytime service!

The fault was eventually fixed. The BT Engineer said there was a large impedance imbalance on the "E" line (between the Exchange and PCP).
He resolved the problem by moving us to a new 300 pair multicore that have been run between the exchange and PCP. It also has a totally different riser in the Exchange apparently.

I can thoroughly recommend VoIPtalk.org . I have been with them since 2004. We have their VoIPtalk 1000 service.
FTAOD We have no commercial interest with them.

Thanks for that, always good to know what jargon to use when trying to communicate with BT!

I'll respond to this after I've called BT

I've not been too concerned with resolving this as BT have apparently been planning to experiment with lower SNR margin thresholds this "spring". As is historically the case with these BT statements, nothing has happened.

See my edit.

In reply to a post by DeanWade:

I've not been too concerned with resolving this as BT have apparently been planning to experiment with lower SNR margin thresholds this "spring". As is historically the case with these BT statements, nothing has happened.

The lower sync-time margins will not be applied to banded lines. Also although the original trials have been expanded in scope it is rumoured the expected national rollout has been postponed to September, with the expanded area trial being more like a pilot.

Edited by RobertoS (Sun 21-May-17 00:15:14)

I had a problem on the E side which took about 6 weeks to be resolved. I ended up contacting the BT CEO Office to try and speed up the process. I don't know what was wrong, one minute everything fine next morning no broadband or phone and I saw BT rolling out new E side cables a few weeks later, probably the cables got nicked. I got compensation though from CEO Office.

Is there a list of the banding rates anywhere I have always wondered about this I think I read somewhere, maybe Kitz such a list exists somewhere?

If you could find the banding rate around the 40m mark you would be able to determine if it's banded or capped at 40. Looks like capped to me.

I stumbled across this not so long back, scroll down for the bands.

Edited by IanBB (Sun 21-May-17 01:16:15)

Unfortunately the line is at the 40/10 speed. My way works, because capping seems to cause a discrepancy between the sync reported by the modem and the sync used by BT Wholesale to calculate the IP Profile. The lower (by a few Mbps) BTW speed being what the ISP is passed at their Radius Server.

Thanks for that Ian. So according to that it could be banded or capped there is no real way of telling if say, for instance, DLM has him on a 20-40 band or is indeed Capped at his original 40/10 package. Depending on which it is will affect which way BT proceed either engineer to reset DLM or remotely removing the cap.

That's badly out of date Ian. I've had 60, 55, 49, 45 and 35 IIRC. I can check tomorrow (oops later today) as they are recorded in my sigs and i know roughly when the changes happened.