OStatic

Ekiga (formerly called GnomeMeeting) is a free and open source VoIP and video conferencing application for GNOME and Windows. Ekiga supports both the ...

Linphone is an audio and video internet phone with GNOME and console interfaces. It lets people communicate freely over the Internet. It uses the SIP ...

The OpenH323 project provides full featured, interoperable, Open Source implementation of the ITU H.323 teleconferencing protocol that can be used by ...

openwengo is a cross platform GPL softphone (windows, linux, mac) for communication over IP: telephony, visio, chat and much more. currently available...

Open source Call Center software, based on H.323/SIP protocols. Contains Nauphone(Software multi-channel IP Phone, with conferences and ability to i...

A unified open source software platform based on Linux for mobile smart phone. The first stage features are call, sms, address book, multimedia, J2ME,...