Well there are a lot of programs out there now that lets you make pc to pc calls for free, but there are not many that let you make pc to land line calls for free.

I have started using www.freecall.com you sign up and download software and you can make up to 300 minutes of phone calls per week! There are lots of free countries to call and the sound is fantastic. This all depends on your internet connection of course and also your equipment you use. I use a usb phone to make my calls and no one can tell that I am using the internet to make the call. The number shows up on their call display as a local number, but no name. The person can not call you back on the number since this is free outgoing only.

If you are looking to receive free incoming calls on your computer www.freedigits.com offers that along with some free outgoing minutes. I can’t tell you how many free outgoing minutes because I could never log in once I have signed up. The call quality is also great.