I know you've got high speed internet, right?
Then you should check this out:
http://www.magicjack.com/ For 40 bucks you get the little usb plugin hardware piece and a year of
service, after that it's 20 a year.
I got one the other day and it works
flawlessly, the only thing I didn't like is there's no caller id info
displayed on my handset, it does display on the computer used to run it
however. I'm going to switch our land line to the lowest cost service they
have, just to keep the number and the hardline available for our home, for
now, and we'll be using the magicjack service for all of our calls, incoming and
outgoing.
Quote from their FAQ:
"Can I use my existing phone number as my magicJack number?
Yes, but not yet.
You will be able to transfer or port your existing local phone number to
magicJack, for a nominal fee, in the coming months."
The added beauty of this little usb plugin? You can take it with you where ever you go, talk about number portability... You can also have as many lines as you have usb ports...