Really
Didn't notice any significant reduction.
( stopmeandslapme Cometh the hour, cometh your mum, Thu 3 Sep 2009, 19:23, 1 reply)

It worked for me
BT gets a bad press and often rightly so, but the TPS is one of the best things about them in my experience. Until a few years ago I'd come back from a weekend away to find my answerphone full of silent messages, and when I was home I'd get at least three calls a day from Bangalore or wherever. It reached breaking point at the start of 2005 when a company called Direct Kitchens started calling every hour, from their call centre somewhere in the subcontinent. I was going through a very bad patch at the time and finally I snapped, yelling

FUCK OFF! FUCK OFF AND DIE!

before slamming the phone down. I got on to BT, who told me about their Preference Service, and within a month 99% of unwanted calls stopped. With the remaining 1% all I have to do is mention TPS and I never hear from them again.

Yes, I know people who work in sales call centres are human too, but if your job involves intruding into people's privacy, in a way that often almost amounts to harassment, you can't expect to receive a very enthusiastic welcome. Nobody is forced to do it.
(eesnahk, Thu 3 Sep 2009, 21:58, closed)

TPS
TPS worked for me too. Before that I'd answer all 'house improvement' calls with 'this is a rental' and they'd just click off - works with doorstep callers too.
(enile, Wed 9 Sep 2009, 12:10, closed)