No, don’t know about vectoring. But since most people have moved to fibre my connect speed has been creeping up slowly over the last 18 months or so. Definitely noticed the change to DLM a few years ago.
Actually we are getting slightly off topic. I was looking for an insight into any technical reasons for 3 days to transfer from POTS to VOIP (Other than the obvious “it’s Vodafone “). But I will post here when it actually starts working, and what happens when I thrash the connection.