[GRLUG] $50K Prize if You Find Way to Block Robocalls

[Bob Kline]

If you provide a contacts list, then
the service might well use Caller ID.
Caller ID is an ASCII string that is
sent just before the ringer tone.

This is something one could build
using one of the RPI's.  Decode the
CID, compare, and connect to phone
only for valid compares.

Of course you won't hear from long
lost friends and other once in a blue
moon calls telling you you won a
million dollars if you pick up immediately.
And you might want display the CID
that has already been used.

I've never seen a home phone like this,
and suspect the phone companies have
something to do with it....

   -- Bob




On Wed, Nov 7, 2012 at 11:57 AM, megadave <megadave at gmail.com> wrote:

> I use google voice, and get no robocalls at all, despite that being
> the main number I provide anywhere I need to provide a number.
>
> Its set to ring through on calls from specific known contacts only -
> everyone else gets voicemail.
>
> If something calls and leaves no message, I can just ignore it. If its
> an important call from a real person, they would have left a message.
>
> And FWIW, google voice offers an option as follows:
>
> Global Spam Filtering - Send calls and text messages from numbers
> identified as spam by Google directly to the Spam folder
>
>
>
> On Wed, Nov 7, 2012 at 10:17 AM, Benjamin Flanders <flanderb at gmail.com>
> wrote:
> > Does Google Voice have an api?  The only way I could see to do this
> would be
> > a rather large invasion of privacy and only work for Google voice
> customers.
> > Send every incoming number to a service that checks to see if that same
> > number called other GV users in a pattern indicative of a robo call.
> >
> > Um, Mike just replied with what I was thinking.
> >
> >
> > Share and Enjoy
> > Ben
> >
> >
> > On Wed, Nov 7, 2012 at 10:10 AM, Tim Schmidt <timschmidt at gmail.com>
> wrote:
> >>
> >> Difficult to do with only access to the phone line, but it would be
> >> comparatively easy for the phone company itself to block these calls.
> >> They'd have to implement an algorithm not unlike those used to detect
> >> credit card fraud, or spam.  If they detect 'spammy' behavior from an
> >> incoming line, they block it.  Of course, this might not make them so
> >> popular with the robocallers, who pay for all those phone lines.  Less
> >> politically risky to try to block the calls at the receiving end.
> >>
> >> On Wed, Nov 7, 2012 at 10:03 AM, Casey DuBois <casey at grlug.org> wrote:
> >> > I've always wanted to figure out how to Block Robocalls but now that
> >> > someone's offering up real cash!!!
> >> >
> >> > What do you guys think? Can we figure it out?
> >> >
> >> >
> >> >
> http://www.scientificcomputing.com/news-DS-50K-Prize-if-You-Find-Way-to-Block-Robocalls-110512.aspx?et_cid=2933257&et_rid=41416611&linkid=http%3a%2f%2fwww.scientificcomputing.com%2fnews-DS-50K-Prize-if-You-Find-Way-to-Block-Robocalls-110512.aspx
> >> >
> >> > Casey DuBois
> >> > 616-808-6942
> >> > casey at grlug.org
> >> >
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