Firefox VoIP Client
libocannici writes "Abbeynet Labs has released the first version of a Firefox VoIP extension which is a full featured SIP user agent plugin for Firefox." The Firefox extension is completely stand-alone, with all VoIP functionality built directly into it. From one-click calling to SMS sending, this promises to be quite handy. All Internet calls are currently free, just requiring an abbyphone account, while PSTN calls have a small charge.
Been there, done that.
http://cardgames.mozdev.org/
- Kevin
The less confident you are, the more serious you have to act.
A great alternite to this extension is the openwengo firefox extension. Its a little buggy, but gets its job done and looks very nice. Its called openwengo, and you can get it from http://www.openwengo.org/ . Its open source, lightweight and also allows free phone line calls, which Abbeynet doesn't do.