Sorry to divert the thread for moment but can Ixel say what support is like with BT business? Is it UK based and is it helpful e.g. with line and DLM issues?
To briefly answer the question, so as to try and avoid off-topic discussion:
- BT Business's support is UK based.
- BT Business's support is probably helpful in most cases, I just didn't have much luck in my case.
Why do I say that? Because...
A while ago, for one morning, I experienced a terrible ping and timeout problems, after doing all the in-house testing that I could do and that the line sync was stable, I assumed it was a problem elsewhere. I waited a few hours and then decided to get the BT website to perform a test on my line, it found a problem somewhere on the BT network (I believe that's how it was worded, or similar to that at least). In a matter of two days, if I remember rightly, at the crack of dawn an engineer put one of those melody testers on the line (I can't remember their exact name), suffice to say it made me jump as I was not expecting an engineer. Anyway, he did a grand job to the best of his abilities in finding and mostly resolving a battery contact fault on my line, even though the original fault had gone. Before he left he noticed the line was capped at 60/20 and could achieve 80/20 easily, so he agreed to contact the special place that deals with a DLM reset request. Sadly he was unable to do so as he didn't have an OGEA number (I think?) which Black Sheep later pointed out he could've got from his laptop.
So, I rung up BT Business, explained the situation and requested a DLM reset, suffice to say as far as they were concerned my line was achieving the estimate despite it being able to do more as it originally once did when it was first installed. To this day I've been stuck on 60/20 with no interleaving applied. I have tried various ways to try and budge DLM (e.g. many syncs) but it seems like my line is just frozen on 60/20 without interleaving. I've left it for what is probably months since and no change to date lol.
Hope that answers your questions, feel free to PM me to discuss further.