A complete, cross-platform solution to record, convert and stream audio and video.
Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
canonical libwebsockets.org networking library https://github.com/warmcat/libwebsockets
Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware.
OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution to be used in professional SIP server platforms.