- Asterisk - Easy to use but advanced IP PBX system, VoIP gateway and conference server.
GPL-2.0C - ASTPP - is an Open Source VoIP Billing Solution for Freeswitch. It supports prepaid and postpaid billing with call rating and credit control. It also provides many other features. (Source Code)
AGPL-3.0PHP - Freepbx - Web-based open source GUI that controls and manages Asterisk. (Source Code)
GPL-2.0PHP - FreeSWITCH - Scalable open source cross-platform telephony platform. (Source Code)
MPL-2.0C - FusionPBX - Open source project that provides a customizable and flexible web interface to the very powerful and highly scalable multi-platform voice switch called FreeSWITCH. (Source Code)
MPL-1.1PHP - Homer - Troubleshooting and monitoring VoIP calls. (Source Code)
AGPL-3.0Angular/C - Kamailio - Modular SIP server (registrar/proxy/router/etc). (Source Code)
GPL-2.0C - Kazoo - KAZOO is an open-source, highly scalable software platform designed to provide carrier-grade VoIP switch functions and features. (Source Code)
MPL-1.1Erlang - Ostel - Secure SIP telephony setup with ZRTP encryption.
GPL-3.0Ruby - Tapir - Troubleshooting and real-time monitoring of VoIP-based systems. (Source Code)
Apache-2.0Java/Kotlin - Wazo - Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API. (Source Code)
GPL-3.0Python/PHP
SIP / Free Software and web applications
This is a list of Free Software network services and web applications which can be hosted locally. Selfhosting is the process of locally hosting and managing applications instead of renting from SaaS providers. ---from github/Kickball/awesome-selfhosted
