Caller ID over USB

[Aubrey McIntosh]

I would like to have a device that inserts into the POTS line and gives
caller ID through the USB port. If I can also obtain length of call,
that is great, of not, ok. Don't care about outgoing calls.

A brief search on google gives all sorts of wondrous high end devices
with this capability. I want less.

Hopefully someone here has designed or heard of such a thing.

 

[John Woodgate]

I read in sci.electronics.design that Aubrey McIntosh <spam@spam04.vima.
austin.tx.us> wrote (in <10v2km1c95m68ab@corp.supernews.com&gt about
'Caller ID over USB', on Fri, 21 Jan 2005:

A brief search on google gives all sorts of wondrous high end devices
with this capability. I want less.

I want an interstellar spaceship that is not a wondrous high-end device.
I want less, too.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Ian Stirling]

Aubrey McIntosh <spam@spam04.vima.austin.tx.us> wrote:

I would like to have a device that inserts into the POTS line and gives
caller ID through the USB port. If I can also obtain length of call,
that is great, of not, ok. Don't care about outgoing calls.

What's wrong with a USB modem?

 

[Joel Kolstad]

"Ian Stirling" <root@mauve.demon.co.uk> wrote in message
news:41f19374$0$53973$ed2e19e4@ptn-nntp-reader04.plus.net...

What's wrong with a USB modem?

Many of them don't do caller ID? At least not without some amount of
hacking?

But it's an excellent option; I hadn't thought of that.

 

[Joel Kolstad]

"Aubrey McIntosh" <spam@spam04.vima.austin.tx.us> wrote in message
news:10v2km1c95m68ab@corp.supernews.com...

I would like to have a device that inserts into the POTS line and gives
caller ID through the USB port. If I can also obtain length of call, that
is great, of not, ok. Don't care about outgoing calls.

There are various caller ID ICs out there that spit out serial data.
(Effectively, they're a MODEM, well, er, a DEM, on a chip -- I believe
caller ID is done using standard Bell modem protocols at 1200bps.) The
simplest thing to do would be to combine this with a USB<-->Serial adapter
(such as the FTDI232) and you'd be all done, no new development necessary.

For a more challenging project, you could implement the demodulator and
everything else in a so-called 'USB microcontroller' (one that has USB
packetizing/encoding hardware built-in). For a really challenging project,
use a regular microcontroller with bit-banged USB.

---Joel Kolstad