fring™ is a mobile internet service & community that enables you to access & interact with your social networks on-the-go, make free calls and live chat with all your fring, Skype®, MSN® Messenger, Google Talk™, ICQ, SIP, Twitter, Yahoo!™ and AIM®* friends using your handset’s internet connection rather than costly cellular airtime minutes.
This website provides complete information about the Extensible Messaging and Presence Protocol (XMPP), an open XML technology for presence and real-time communication developed by the Jabber open-source community in 1999, formalized by the IETF in 2002-2004, and continuously extended through the standards process of the XMPP Standards Foundation.
Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols.