Every teacher (at my school) now has a free phone in their classroom thanks to Google...and you can too!
If you have a FREE gmail account and a computer you can now make phone calls for FREE right in your own classroom. If you don’t have an account get one as quick as you can to take advantage of this great offering.
To learn more check out this post by Moving at the Speed of Creativity.
I tried using the service and it works great.