I've got a customer who lives where traditional land line phones are
not available, however cell phone service is.  He had been told by a
an employee of a certain cell service (who is no longer employed
there) that a bag phone would be able to be split and be distributed
through out the house on traditional bell style wiring and phones. 
I've never heard of such a system but if it does exist can you tell me
where I find one?

Hello Streack-ga,

The employee was correct, there is a way to have cellular service work
on in-home POTS (Plain Ol' Telephone Service) wiring.  I just heard of
this myself the other day.

There is a product called CellSocket. CellSocket allows you to make
and receive cellular voice calls on standard telephone lines in your
home or office. It has a built-in charger that keeps your cell phone
battery at full charge when connected to the CellSocket. You can get
rid of your home phone and make use of your cell phone on your home
system.

You attach the system to your home phone lines, and when a call comes
into the cellular phone, CellSocket makes it ring on phones connected
to the home phone line. This way you can use a cordless phone to talk
through out the house when the calls are coming in or being made on
your cellular service.

CellSocket seems to work with many Motorola phone models.

http://www.cellantenna.com/Dockingstations/cellsocket.htm
http://www.omnicellonline.com/sitebuildercontent/sitebuilderfiles/aboutthedockingstation.pdf
---------------------------------------------------------

There is also another model that works for these models of cell
phones, which you can see here.
   
Nokia CDMA and TDMA models

5120,5120i, 5160, 5160i, 5165, 5170, 5180, 5185i, 6120, 6120i, 6160,
6160i, 6160m, 6161, 6161i, 6162, 6162i, 6162m, and 6185.
-----------------------
Motorola CDMA and TDMA models

StarTac ST7868w, ST7867w, ST7860w, and ST7797; Timeport P8767, P8097,
P8167, P8160, and P8090; and Talkabout T8167, T8160, T8097, and T8090.
-----------------------
Ericsson models

R280LX, A1228LX, A1228d, T19LX, T18LX, T18d, LX588, KF788, and KH668.
-----------------------

http://www.sandman.com/pouches.html#cellPOTSadapter

--------------------------------------------------------------------------------

This should help your customer out. This is pretty new (at least to
me) technology, I just recently heard of it in the last few weeks, so
please keep checking online, many other cell providers may come out
with this product for their phone models soon as well.

If this answer requires further explanation, please request
clarification before rating it, and I'll be happy to look into this
further.
Nenna-GA
Google Answers Researcher

I'm sure the reception can be as bad as (or worse than) normal cell service.