3 projects
Kamailio
Kamailio is an open source SIP server and SIP proxy server implementation, capable of handling thousands of call setups per second. It can be used to build large platforms for VoIP and realtime communications, including WebRTC, instant messaging, and presence services.
Contributors
1,696
Organizations
191
Software value
$46M
OpenSIPS
OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms.
Contributors
1,077
Organizations
82
Software value
$25M
Asterisk
Asterisk is an open source framework for building communications applications, including VoIP gateways, PBX systems, conference servers and other custom telephony solutions. It enables developers to create voice, video and messaging applications by providing a robust toolkit for handling various communication protocols and media types.
Contributors
872
Organizations
101
Software value
$32M