FreeSWITCH
FreeSWITCH is an open-source telephony platform designed for routing and connecting various communication protocols, including voice, video, text, and other real-time media. It functions as a software-based private branch exchange (PBX) and can handle tasks like call routing, conferencing, and media processing. It is highly scalable and used to build communication applications such as VoIP systems, call centers, and unified communications solutions.
Developers should learn FreeSWITCH when building or integrating telephony systems, especially for applications requiring VoIP, SIP-based communication, or real-time media processing. It is ideal for creating custom PBX solutions, interactive voice response (IVR) systems, and video conferencing platforms, offering flexibility and control over communication workflows.