BestCommunication / VoIP & TelephonyTools

Open source communication and collaboration tools. Find Slack alternatives like Rocket.Chat, Mattermost, and Zulip, video conferencing platforms like Jitsi Meet and BigBlueButton, customer support tools like Chatwoot, and Matrix-based messaging clients. Keep team conversations secure and under your control.

freeswitch

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. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.

VoIP

kamailio

Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability

SIP

asterisk

The official Asterisk Project repository.

PBX

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.

SIP Server