Thanks for your message burakkucat,
I registered on here tonight because the contributors appear to be very knowledgeable, some even being experienced engineers with a quite well known telecomms company.
I have read the posts you mention. They may be a little "in-depth", but I used to do a bit of soldering & programming eeproms for CB radios to get "extra" bands etc., but my eyes aren't what they used to be any more.
I do have some ongoing FTTC issues, with both BT & my ISP currently denying any responsibility.
I'll start another thread(s) when I get a bit of time to spare.
BTW, a "reliable" replacement for BT's Echolife HG612 is apparently being trialed as we speak (according to the BT engineer who has been trying to sort out some of my "problems") - no details or ETA yet though.
Paul.