Flashphone, make phone calls from your browser

Flashphone is a service that unlike Skype and Yahoo Messenger, you do not have to download any software, you will simply make phone calls from your browser.
Still is in a Beta version, for calling you must register which gives you access to 3 calls per day for a maximum of 3 minutes each, after the Beta testing, the phone calls will be longer and free. Almost all countries are able to use this service.

Via teknobites