FWIW, we're considering getting one of these for similar reasons: http://www.truecall.co.uk/ http://www.truecall.co.uk/ Not sure if it's available for use out

FWIW, we're considering getting one of these for similar reasons: http://www.truecall.co.uk/ http://www.truecall.co.uk/ Not sure if it's available for use outside the UK, but we'll settle for just stopping calls to our phone from outside the UK from ringing given that 100% of them are junk. (In theory, BT can block them on request. In practice, that request has not been effective, so we're looking for a more direct approach.)