Spot on, Barney 9.9p connection plus 8p per minute at all times.
My second reason for raising this query was to point out that the call charges provided by TalkTalk on its web site were incomplete. Well, actually they aren't incomplete, they are just hard to find.
So the correct procedure to find these numbers (assuming you don't have a friend called Barney to give you the direct link) would be:
Go to TalkTalk's price list ... broadband.talktalk.co.uk/pricing/essentials ... Click "Essentials". Click "Rates to UK Landlines". Click the not very obvious "Other call types (click here for number list)", and it will link to the PDF prices file.
It could (and should) be clearer. Perhaps an OCE could just mention this to someone?