PUBLIC MARKS from cadu with tags voip & "open source"

Jabbin is an Open Source instant messaging program that allows free PC to PC calls using the VoIP system over the Jabber network.

Cockatoo is a project about implementing SIP/SIMPLE as an extension for Thunderbird (XPCOM component/XUL interface) that enables users to phone contacts and see their presence state.

Voice over IP tends to be part of more and more corporate (and home) networks today. As Open Source Software become more and more popular in companies, we decided to provide the community with a new powerful and open platform for desktop-based Voice over IP. SFLphone aims to become your desktop`s VoIP companion.

Tapioca is a framework for Voice over IP (VoIP) and Instant Messaging (IM). Its main goal is to provide an easy way for developing and using VoIP and IM services in any kind of application. It was designed to be cross-platform, lightweight, thread-safe, having mobile devices and applications in mind.

Voipster is an open source Internet Telephony company specialising in offering VOIP software and services.

Gizmo is a Free Phone for Your Computer<br /> That makes calling as easy as instant messaging

Asterisk™ - the Open Source PBX

Tycho Softworks is a provider of professional services and commercial incident support worldwide to users of GNU Bayonne for both traditional wired circuits and the rapidly growing Voice-Over-IP (VOIP) telephony market. Our company develops solutions exclusively using Free and Open Source software. Our own software is publicly developed as part of the GNU Telephony community. While Tycho Softworks specifically helps to develop and provides commercial support for GNU Bayonne, we do develop solutions using various free software for our clients. We offer over 10 years of expertise in developing custom telephony solutions.

GNU Telephony is a meta project dedicated to the development and promotion of the use of free software for telephony. This project is used to directly support the GNU Common C++ family of libraries, telephony application servers such as GNU Bayonne, ip/pstn gateway packages such as Troll, and some other useful telephony related free software packages which I activily maintain.