Wazo.io
Asterisk
FreeSWITCH
FusionPBX
Kamailio
miniSIPServer
XiVO
VoipSwitch
DevToolCafe
DevTools360
DevToolCafeAsterisk - An open source telephony switching and private branch exchange service for Linux.
DevTools360 - One source for all tools, from simple string conversion to complex OCR detections. It is the swiss knife for your daily online tasks.
FreeSWITCH - FreeSWITCH is an open-source media application designed to support popular protools such as SIP and WebRTC and provides a platform to develop voice and video applications.
FusionPBX - FusionPBX is an open source FreeSWITCH GUI.
Kamailio - Kamailioยฎ (successor of former OpenSER and SER) is an open source SIP server released under...
miniSIPServer - Social & Communications and Development