My latest purchase was a "magicjack"

If you have broadband internet, it's a tiny thing the size of a matchbook you plug in a usb port, then plug in a regular phone. You get your own tel. number and it have voicemail to email and call forwarding.

The device is 20 bucks and the service (free anything US & Canada) is 20 bucks per year.

The best part is the little fucker works!