Tim wrote regarding '[OT] Cellular Telephone Adapter for Standard Phones' on Fri, Dec 02 at 08:27:
> I'd like to find some sort of a cell phone module that would let me 
> plug in a regular desk phone with an external ringer bell or flashing 
> light. Alternately something that would attach to a regular cell phone 
> and provide a loud ringer or light would probably work. We're in the 
> US so compatibility with that cell phone system is needed.

What about that thing Cingular had a while back where you could put
your cell phone on a cradle which would make the phones in your house
ring / let you talk over them?  I have no idea if they still offer
that, bit it might well do what you need.

Or you could just put the phone on vibrate and carry the phone in your
pants pocket.  That's what I've done for years - and I drive a car
whose exhaust is loud enough inside in combination with the stereo
usually being up loud*er* so I can hear the vocals.  The phone ringer
usually ins't heard, but I typically feel a vibration (which is
distinguishable from the vibration the car normally has) every time.
:)

...time passes...

Ok, through a quick web search, I found this:
http://www.cingular.com/customer_service/fast_forward
which is the Cingular thing, which apparently just forwards calls to
your home phone, and therefore isn't really what you asked for (but
would call forwarding work for you?).
There's also this thing: http://www.phonelabs.com/prd05.asp
I'm not sure if it'll do what you want or not, but it's got
potential...
http://communications.rca.com/en-US/ModelDetail.html?MN=23200RE3

My final suggestion, and probably the most useful, is to find out if
your cell phone can be hooked up to a car stereo's mute circuit.  Lots
of phones have an output which will mute an aftermarket (and some
factory) stereos.  The output is just an on/off kind of thing.  If you
can figure out how to get at that output, it should be pretty trivial
to use a relay or something to kick on a BigArse Bell(TM).  You'd want
to disconnect the output when talking, though, as the mute output
stays active during the conversation as well.

--Danny
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