Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, IRC and many other useful features.

WebRTC plugin for Flutter Mobile/Desktop/Web

Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms -

A simple, intuitive, and powerful JavaScript signaling library

Pluggable WebRTC softphone and communication platform.

RTSP/RTP/RTMP/FLV/HLS/MPEG-TS/MPEG-PS/MPEG-DASH/MP4/fMP4

SIP softphone for Mac

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.

Baresip is a modular SIP User-Agent with audio and video support

HOMER - 100% Open-Source SIP / VoIP Packet Capture & Monitoring

Routr: Next-generation SIP Server

Linphone.org mirror for linphone-android (https://gitlab.linphone.org/BC/public/linphone-android)

PJSIP project

Ncurses SIP Messages flow viewer

SIPVicious OSS is a set of security tools that can be used to audit SIP based VoIP systems.

Linphone is a free VoIP and video softphone based on the SIP protocol. Mirror of linphone-iphone (git://git.linphone.org/linphone-iphone.git)

Generic library for real-time communications with async IO support

The RTPproxy is a high-performance software proxy for RTP streams that can work together with Sippy B2BUA, Kamailio, OpenSIPS and SER.

A cross platform pure C# .NET Core library for SIP, VoIP and WebRTC. No native library wrappers required.

Dockerized FreePBX 15 w/Asterisk 17, Seperate MySQL Database support, and Data Persistence and UCP

☎️ Original open source call flooder using Twilio's API.

The Open Source Cloud Communications Platform

Linux/Win/Docker/kubernetes/Chart/Kustomize/GB28181/SIP/RTP/SDP/WebRTC/作为上下级域/平台级联互联

SIP-Based Audit and Attack Tool

A PJSIP module for React Native.

SIP answering machine running on Raspberry Pi

Linphone is a free VoIP and video softphone based on the SIP protocol. Mirror of git://git.linphone.org/linphone-desktop.git

SIPp scenarios I use for testing SIP stuff

Setup for a WEBRTC client and Kamailio server to call SIP clients