In article >, says...
>
> On 11/9/2013 6:07 PM, Paul M. Cook wrote:
> > "Cheryl" > wrote in message
> > eb.com...
> >> Hi guys. We've had several conversations about this, and I just found a
> >> way that is supposed to block robocalls. I just signed up so can't tell
> >> yet how well it works. If you want more info, look he
> >>
> >> http://www.nomorobo.com/dashboard
> >
> >
> > I have a private number but somehow they got it and my name.
>
> Anyone you shared that information with could and probably did sell
> it. But most of the time, the telemarketers are using dialing software
> that simply dials phone numbers in sequence. If you're not blocking
> it, your name will then come up on caller ID. Anyhow, sequential
> dialing is fast and easy when done by automated equipment, and it's
> why there's that telltale pause after you answer the phone, before a
> human voice (or recording) comes on the line. They're dialing multiple
> numbers at once; the first to answer gets the spiel. The next in line
> will get a pause, followed either by a spiel or a disconnect
> (depending on how long it takes with the first respondent). Numbers
> farther down that answered will get a pause followed by a disconnect.
>
> Rule to live by: if you answer and no one speaks immediately, it's
> from a robodialler, most likely from a telemarketer, so you can just
> hang up. Exception: if you receive automated phone reminders for
> things like appointments or prescriptions, it might be one of those.
> But most of the time it's a huckster.

I got a google voice number specifically for that purpose. I give it
when required and then give the entity I gave it to hell for selling it.