Yes Keith you're right there was a filter fitted to the phone line, just refitted it, everything back to normal. For some reason I'd taken the filter off the phone line whilst decorating and forgot about it, what an idiot, lol.
Hope I haven't wasted too much of your time,
Thanks for your help
Its not a problem, as that is what this user forum is for.
Its still worth thinking about a filtered faceplate, as extension wiring carrying broadband can affect the speed.
It would also save two microfilters hanging from sockets.
Yes I'll definitely be fitting the filtered faceplate in the near future.
Thanks again for your help.