No you are not. I think I wasn't clear enough. These are too good choices. I had forgotten about Google voice. Thanks.

Anyhow, I guess I meant something that worked pretty much exactly like the pay phone. Something that I can use once and not leave the rest of my money trapped there forever. At least for Skype you have to buy at least $10 worth of credits. How does it work for Google voice? Is it on demand?

Also, something that you didn't have to subscribe to some service so you can use it. I know both Skype and Gmail both have hundreds of millions of users but what if you don't use either one.