645 Open source projects that are alternatives of or similar to Core

Kalbi - Golang Session Initiated Protocol Framework

Katari - Python Session Initiated Protocol Framework

FreePBX container (Asterisk 16; OpenPBX 15 with Backup and IVR modules installed)

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

Reverse Caller Id using TrueCaller

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

configurations for voip solution architectures and usecases involving SIP servers

IVOZ Provider - Multitenant solution for VoIP telephony providers

Asterisk PBX configuration syntax checker

Routr: Next-generation SIP Server

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

HOMER 7.x Front-End and API Server

Set of tools to audit SIP based VoIP Systems

A fully featured browser based WebRTC SIP phone for Asterisk

Combined dialplan and FastAGI services with a visual dialplan constructor for Asterisk PBX

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

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

📡 A curated list of awesome Real Time Communications resources

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.

AstLinux is a "Network Appliance for Communications" x86_64 Linux distribution

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

🚀 The open-source alternative to Twilio

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

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

PJSIP project

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

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

Captcha for phone calls

Open Source Implementation of Twilio's REST API

Generic library for real-time communications with async IO support

Open software for HEVC video calls

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

HOMER 7 Docker Images

Ansible scripts to install and configure SIP3

Linphone.org mirror for flexisip (git://git.linphone.org/flexisip.git)

Media controller for Asterisk PBX (FastAGI Server)

SIP softphone for Mac

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

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

SIP-Based Audit and Attack Tool

🤙Learning VoIP, RTP, pjsip and SIP

A simple, intuitive, and powerful JavaScript signaling library

VOIP Security Audit Framework

A dart-lang version of the SIP UA stack.

A Go implementation of STUN

WebRTC plugin for Flutter Mobile/Desktop/Web

Telegram <-> SIP voice gateway

VOIP Security Audit Framework

A PJSIP module for React Native.

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。

The Open Source Cloud Communications Platform

SIP softphone

HEP Capture Server

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

[DEPRECATED] Official, pre-packaged Vagrant Box

The Open Source Contact Center Solution (mirror of https://gitlab.com/omnileads/ominicontacto)

Jami (formerly Ring (formerly SFLphone)) is a SIP compatible softphone for GNU/Linux.

Enterprise telephony recording and retrieval system with web based user interface.

Asterisk AMI Client for NodeJS (ES2015)

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