I recently purchased a Nokie e71. For those of your not familiar with it, this phone has VOIP capabilities over wifi.
(see setup here: http://www.geek.com/articles/mobile/feature-voip-with-nokia-e71-how-to-2008095/)
Here is what I'm trying to do:
Have a computer at home connected to my landline and the internet.
Have my e71 connect to any wifi hotspot, tunnel through the internet, and my computer, and make and receive calls through my landline.
I finally installed TrixBox on my computer.
From reading some more, I've discovered that I'm missing some hardware.
Apparently I need a SIP adapter or some sort.
Why can't I use a pci fax modem that connects to the landline?