Feeling chatty? Check out alternative open-source voice-over-IP
tool: Ekiga. Using the SIP standard, Ekiga (formerly GnomeMeeting)
lets you talk to other users of SIP-compatible VoIP programs,
including Windows Messenger, and make calls to land lines by
subscribing to SIP-compatible VoIP providers like Gizmo and Wengo.
And unlike Skype, Ekiga doesn't use your PC to handle other
Note: This link takes you to the vendor's site, where you
can download the latest version of the software.