1924 Open source projects that are alternatives of or similar to Freeswitch

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

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

A fully featured browser based WebRTC SIP phone for Asterisk

IVOZ Provider - Multitenant solution for VoIP telephony providers

A Go implementation of STUN

🚀 The open-source alternative to Twilio

A Go implementation of the SDP

Pàdé (Yoruba word for Meet) is a browser extension (Chrome/Edge) based unified communications desktop client for Openfire.

Katari - Python Session Initiated Protocol Framework

Generic library for real-time communications with async IO support

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

Routr: Next-generation SIP Server

网关服务：Sip与Rtc互通，实现Web，Android，iOS，小程序，SIP座机，PSTN电话，手机互通。

WebRTC plugin for Flutter Mobile/Desktop/Web

A WebRTC, SIP and VoIP library for C# and .NET Core. Designed for real-time communications apps.

Free, easy to setup PBX for small business based on Asterisk 16 core

Kalbi - Golang Session Initiated Protocol Framework

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

A simple, intuitive, and powerful JavaScript signaling library

📡 A curated list of awesome Real Time Communications resources

Simple and fast viewer for Asterisk CDRs and Recordings (Mod)

A distributed peer to peer list of bad actor IP addresses and phone numbers collected via a SIP Honeypot.

sip capture server by hep。work with OpenSIPS, Kamailo, and FreeSWITCH。

A "SIP Torture" (RFC 4475) testing suite.

SIP3 Captain (Community Edition)

Simlar for android

Routing and rating VoIP application for service providers - API based - AGPL v3 - Based on kamailio

WireBug is a toolset for Voice-over-IP penetration testing

VOIP Security Audit Framework

Python SDK for Cisco CUCM AXL API

configurations for voip solution architectures and usecases involving SIP servers

Typescript project based on matter.ts implementation."This version 2 of visualjs game engine, totally different approach. Whole project is based fully dependency build. Main file is app.ts and ioc.ts. Class ioc saves singleton instances also bind. In this project html and css is also present, webpack helps and handle this type of files. GamePlay…

studio link - app - mirror repo only -> issues now https://gitlab.com/studio.link/app

Modern .NET Standard client for accessing the Asterisk AMI protocol using async/await and Reactive Extensions (Rx)

Open Source Implementation of Twilio's REST API

SIP3 Salto (Community Edition)

SIP3 Twig (Community Edition)

baresip python wrapper

Linphone.org mirror for linphone-xamarin (git://git.linphone.org/linphone-xamarin.git)

🚀starRTC，即时通讯(IM)系统，免费IM系统（含单聊，群聊，聊天室，文件传输），免费一对一视频聊天，VOIP，语音对讲（回音消除），直播连麦，视频直播，RTSP拉流，RTMP推流，webRTC服务端，在线教育，白板，小班课，在线会议，视频会议，视频监控，局域网直连（无需服务器），兼容webRTC, 支持webRTC加速，P2P高清传输，安卓、iOS、web互通，支持门禁对讲，可视对讲，电视盒子，树莓派，海思，全志，任天堂switch，云游戏，OTT设备，物联网平台，C语言自研方案，支持二次开发成类微信，类映客等APP，✨万水千山总是情，来个star行不行✨，更多示例请访问：

SIP-Based Audit and Attack Tool

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

Go SIP UA library for client/b2bua

VoIP/SIP client (softphone)

Barebone Opensource Powered SBC

一对一voip视频聊天，直播连麦，多人视频会议，在线会议web演示：

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

The Things Network Stack V2

iOS CallKit framework and Android ConnectionService for React Native

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

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

PJSIP project

Multi-Protocol Webphone

Mumble is an open-source, low-latency, high quality voice chat software.

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

SiteWhere is an industrial strength open-source application enablement platform for the Internet of Things (IoT). It provides a multi-tenant microservice-based infrastructure that includes device/asset management, data ingestion, big-data storage, and integration through a modern, scalable architecture. SiteWhere provides REST APIs for all system functionality. SiteWhere provides SDKs for many common device platforms including Android, iOS, Arduino, and any Java-capable platform such as Raspberry Pi rapidly accelerating the speed of innovation.

A pure Rust implementation of WebRTC API

Virtual Meetups through Jitsi

SIP softphone for Mac

Pluggable WebRTC softphone and communication platform.