VoIP

VoIP stand for Voice Over IP. It enables the user to make phone calls (sometimes video phone calls) over a network.

Open source clients

Ekiga

• Ekiga (net-im/ekiga)

Gizmo

• Gizmo (net-im/gizmo)

Kphone

• Kphone (net-misc/kphone)

Wengophone

• Wengophone (net-im/wengophone) (in development)

aMSN

• aMSN is an MSN Messenger clone. Has video support in the latest version (newer than version currently^{[13 July 2007]} in portage).

Decibel Project

• Decibel is a realtime communications framework, integrating services like CTI (Computer Telephone Integration), VoIP (Voice over IP), text based chat and instant messaging.

Proprietary clients

• Skype

VOIP Websites

• Free VOIP