CellSocket <http://cellsocket.com> and Dock-N-Talk
<http://www.dock-n-talk.com .  You can use your cell phone as a second
line or use as "line two" if you have a two line phone.  Phone just
snaps into a "docking station" and you use your wired phone to place
calls just as you would normally except that you end all calls with a
# (which is the same as pressing the send/ok key on your cell phone.)
Only compatible with certain phones, but if you have a bluetooth
enabled phone you have lots more selection.

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