The Gizmo Project's VoIP

Gizmo Project propose itself as another Skype™ concurrent but with lower rates and the chance to make free phone calls in many countries without spending a cent.
Besides we have the possibility to get a personal number to receive normal phone calls called Gizmo Call In and it is possible to buy credit to make calls to landlines phones and cell phones (Gizmo Call Out).
An example of the rates to call in the U.S.A.: to a landline phone and cell phone we spend 0,019 dollars, while making a call to Italy we'll spend 0,02 dollars to landlines phones and 0,32 dollars to cell phones; all the rates are available at this link.
The current version available in multilanguage is downloadable from the official site and it's the 3.1.0.276 release dated 7th of May 2007, lower releases but however functional are available also for Mac and Linux.
To know also the compatibility with the Asterisk® software and SIP protocol.
Gizmo is available also for the following cell phones: Nokia N800, Nokia 770 and Nokia N80 IE.