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The H323Plus project, formerly OpenH323, has as goal developing a full featured, open source implementation of the H.323 Voice over IP protocol. The code is written in C++ and, through the development effort of numerous people around the world, fully supports the H.323 protocol.
It is designed for Linux operating systems and uses the Qt toolkit for its graphical user interface. For call signaling it employs the Session Initiation Protocol (SIP). [2] It also features direct IP-to-IP calls.
Yate ( Yet Another Telephony Engine) is a free and open source communications software with support for video, voice and instant messaging. It is an extensible IP PBX under the GPLv2 with linking exception license. [3]
Blink is based on the Session Initiation Protocol, and beyond voice over IP, its features also include video, instant messaging, file transfer and multi-party conferencing sessions based on MSRP protocol, remote desktop sharing using RFB protocol (VNC), and SIMPLE presence using XCAP protocol.
FreeSWITCH is a free and open-source telephony software for real-time communication protocols using audio, video, text and other forms of media. The software has applications in WebRTC, voice over Internet Protocol (VoIP), video transcoding, Multipoint Control Unit (MCU) functionality and supports Session Initiation Protocol (SIP) features.
It is a common misconception that TAPI 3.0 (or TAPI 3.1) replaces TAPI 2.x.. TAPI 2.x and earlier versions were written in C; the API uses pointers to structures.. Consequently, TAPI 2.x is easy to access from C or C++ applications, but it can be awkward to use from many other programmi
In March 2009, Voxeo launched the Tropo.com [22] [23] platform that allows developers to create voice/telephony applications using the languages of Ruby, Python, PHP, Groovy, and Javascript or via a WebAPI that utilizes a request-response model and talks to an application running on a web server using HTTP and JSON. In May 2011, Voxeo launched ...
Empathy is a discontinued instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication over various IM communication protocols. Empathy was created by forking the Gossip project started by Michael Hallendal, Richard Hult and later maintained by Martyn Russell. It ...