Make calls from your computer – free to other people on Skype, cheap to phones and mobiles across the world. And the sound quality is great, too – keep it running all day, and it’s like you’re in the same room as the person on the other end.

Features
Free Skype-to-Skype calls to people anywhere in the world.
Free video calls - plus get more detail than ever before with High Quality Video.
Call phones and mobiles at pretty cheap rates per minute.
Instant message when it’s not a good time to talk.
Forward your calls and get text messages when you’re not online.
Search the web with the Google Toolbar (optional install).