Calling Long Distance Parents

Increasingly my students' parents have long distance numbers that I need to call to reach them.  While my school will provide me with a long distance calling card, it is much quicker to just go into my gmail and call from there.  As you can see in the picture above, you need to download a small file and then simply hit the "call" button and a dial pad appears.  Then you dial in the number and call from your computer.  Google just announced that they are allowing free calls (they keep extending it) through 2012.