Yahoo messenger had a phone service, but it costs about 10 bucks, a one time fee.. I thought it was a good deal, and I still have it on my desktop. I tried using google voice, but it was strange to me. Yahoo was like a normal phone service.
Yea like someone said google has something like that, and skype. I'm not sure if you have to pay for the actual phone function or not...
Yes, try Skype.
well. skype? does just that.
google voice is pretty cool