Ekiga - Software Phone and Video Cnferencing Application

Ekiga (formely known as GnomeMeeting) is an open source SoftPhone, Video Conferencing and Instant Messenger application over the Internet. It provides Audio and Video free calls through the internet. It supports standard telephony features like Call Hold, Call Transfer, Call Forwarding, Call Histroy and Call Monitoring.

It supports HD sound quality audio and DVD quality video. It is interoperable with PBX like Asterisk.