AGEphone is a fully functional freeware SIP based softphone gadget for the Windows Vista sidebar that allows you to quickly make and receive VoIP calls using any SIP based service provider like Voipbuster, Voipstunt, Gizmoproject, Free World Dialup, etc from your desktop computer. The current free Beta version can be used without any restrictions for unlimited VoIP calls till the final version is released.

To use the Beta version without any restrictions, use this free serial key:B3638F81ABB88046

Download from Windows Live gallery here