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Browse free open source VoIP software and projects below. Use the toggles on the left to filter open source VoIP software by OS, license, language, programming language, and project status.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • ShareCRM is an AI-powered enterprise CRM platform designed to connect data and teams across the entire customer lifecycle. Icon
    ShareCRM is an AI-powered enterprise CRM platform designed to connect data and teams across the entire customer lifecycle.

    Trusted by 6000+ Large and Medium Enterprises

    ShareCRM is an AI-powered, customizable and affordable enterprise CRM solution to seamlessly integrate and empower every aspect of your business.
    Learn More
  • 1
    Elastix

    Elastix

    Unified Communications Server

    Elastix is a software-based PBX powered by 3CX and based on Debian. An open-standards solution, Elastix is an easy to install and manage UC system compatible with popular IP phones, gateways and SIP trunks. Elastix is complete with unified communications features such as integrated WebRTC video conferencing, chat, presence and softphones and smartphone clients for Windows, Mac, iOS and Android.
    Leader badge">
    Downloads: 164 This Week
    Last Update:
    See Project
  • 2
    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP

    Open Source - GPLv3 inc images. *** PLEASE NOTE: There are now 2 seperate versions here. *** One is Pre Firefox 57. The other is Post Firefox 57. *** For those providing mirrors, please enable your users to realize this. Vidalia Based, Tor as a Service Solution. MicroSip: enables FREE PC to PC video calling with no account sign-up and no middleman server. WASTE: enables FREE Conference VoIP, chat, file transfer and support. *** AI Powered *** Tor/i2p: enables safer browsing. Tor/i2p Profile: Browse over Tor/i2p on Firefox (Vanilla, ESR), Waterfox (Classic, New), Palemoon , LibreWolf and legacy CyberFox. As with all versions of Tor - do not rely on this for strong anonymity. A usability enhanced Privacy Pack. Use alongside Tor Browser Bundle. An installer, for : Vista 32/64, Win7 32/64, Win8 32/64, Win10 32/64, Win11, Linux (Wine)
    Downloads: 28 This Week
    Last Update:
    See Project
  • 3
    Kiax is a softphone (soft phone, VoIP client) with a simple and comfortable user interface for making VoIP calls to Asterisk PBX. It depends on the iaxclient library to use Asterisk's IAX2 protocol for easy call configuration and audio setup.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 4
    The Open Source IMS Core Project
    Downloads: 14 This Week
    Last Update:
    See Project
  • More Bookings. Better Experience. Icon
    More Bookings. Better Experience.

    For tour and activity providers

    The all-in-one solution built to help you stay organised and get more bookings with thousands of connections to online travel agencies (OTAs), resellers and suppliers.
    Learn More
  • 5
    Jabbin
    Jabbin is an Open Source social application that combines VoIP, Instant Messaging and Social Networking, allowing you to focus on what you really care about: your friends.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 6
    GNU Gatekeeper (GnuGk)

    GNU Gatekeeper (GnuGk)

    H.323 Gatekeeper for VoIP and videconferencing

    The project has moved! Please find current versions at https://www.gnugk.org/ The GNU Gatekeeper (GnuGk) is a full featured H.323 gatekeeper under GPL license. It supports VoIP and videoconferencing and includes Radius and database support and many call routing functions. The project has moved! Please find current versions at https://www.gnugk.org/
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    JAVA Asterisk Predictive Dialer using AMI (Asterisk Manager Interface)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Ex Elaxtix community and others groups , migrating web panel for Debian base distros
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Libre Software to manage audio/video connection from a PC to a libre hardware real time stethoscope hardware, developed to allow doctors make a remote diagnose in real time in isolated rural areas of developing countries or for medicine teaching
    Downloads: 0 This Week
    Last Update:
    See Project
  • Effortlessly Manage Product Information Icon
    Effortlessly Manage Product Information

    OneTimePIM is a comprehensive Product Information Management System designed to streamline the import and distribution of product data.

    A single source of truth for all of your product information with easy ways to distribute that data to wherever it needs to go, including the most powerful e-commerce connectors in the industry.
    Learn More
  • 10
    Elastix SMS Module is a module for sending individual and bulk SMS messages. You can create any number of SMPP trunks, create groups of numbers, create SMS campaigns and send individual SMS messages. More info about us in: http://www.iberoxarxa.es http://www.facebook.com/iberoxarxa
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    OaxRom WebSMS is a software that allow send multiple SMS from a web page, you will only need capture category, link with contacts and then you can send sms messages from a webpage selecting a category then will send sms to all contacts of the categor
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    OmniLeads

    OmniLeads

    Official Mirror for OMniLeads

    The Open Source Contact Center Solution (OMniLeads) )https://www.omnileads.net/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    PBXlab adds value to business thanks to its valuable contribution of technological solutions. PBXlab promotes the use of free software programs that can be tailored to the real needs of its users, speed of movement between users, at a very low cost or no cost. PBXlab offers development of add-ons and improvements to programs, leading to more full, safe and adapted to customer needs programs. We offer technological independence without having to develop products from scratch. PURPOSE: This project is designed to install the latest stable version of certified-asterisk-13.1-current + FreePBX V.12-based system in Debian 8.1 Platforms and versions tested: + 686 and amd64 + Debian 8.1 Jessie + Certified Asterisk 13.1-current - LTS + Libpri 1.4.4 + DAHDI COMPLETE LINUX Current + FreePBX 12. + Avantfax 3.3.3 + FOP2 2.29.02 + Webmin 1.760 + PHPSysInfo 3.2.2 + Fail2ban + CSF Firewall
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Quimerus PAR-CENT
    [es ] Aplicación web central para particulares. [en ] Core web application for individuals. [fr] Application Web centrale pour les personnes. [pt] Central de aplicação web para indivíduos. [ar] المركزي تطبيق ويب للأفراد
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    SipManager is a full-feature IP-Centrex PBX web app for hosted/multi-client PBX based on Asterisk and OpenSer. VoIP/ToIP platform (PBX, Fax, workflows, etc.). User-friendly web interface. Realtime architecture with SQL database. ASP. http://www.ovvoe.com
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    SkypeMusicMood

    SkypeMusicMood

    Sets your Skype mood text to the song you're listening

    A simple status bar item that sets your Skype mood message to the song that is playing on iTunes, VLC or Spotify.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Spark plugin for integratión with CentricCRM. This plugin for Spark XMPP client complements the integration between Asterisk PBX, Centric CRM and XMPP Server. Automatically open session on Centric CRM and redirect to contact the page
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    A Python library to create sophisticated multilingual IVR applications. NOTICE. The repository is frozen, please find the latest version of the software at https://github.com/sippy/vapp
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    VitalPBX

    VitalPBX

    Unified Communications System - PBX System

    VitalPBX is a free telephone and communications PBX system for companies. It is a complete platform that can be installed on the physical hardware on the site or as a hosted application. VitalPBX acts as the upper layer interface for the Linux base and then Asterisk (one of the most popular communication toolkits in the world). For this reason, VitalPBX is the graphic user interface between you and the complex world of modern communications. VitalPBX will help you implement a secure telephone system for your company, save, take advantage of recent innovations and provide opportunities to integrate your business processes if you wish to do so.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    VozBox. Más que una centralita.

    VozBox. Más que una centralita.

    VozBox. Asterisk VoIP PBX.

    VozBox es poder disponer de un Sistema de Comunicación Avanzado. Es poder llegar más lejos. Es poder convertir lo más sofisticado en lo más sencillo. Es poder contar con la más avanzada tecnología de comunicación, reduciendo sus gastos. Es una centralita VoIP Asterisk con altas prestaciones para las Empresas. Última versión disponible 2.11.19 en la web de VozBox: http://www.vozbox.es/descarga/ Internet connection required during installation. Update version: 2.11.19 1 - Customizing bash_login and bashrc 2 - Upgrade to version libpri-1.4.15 3 - Included new module-manager FOP2-1.0.3 4 - Inclusion of new packages and dependencies. 5 - Correction of errors in the installation. 6 - Upgrade to version webmin-1.710 7 - Correction of errors in the pbx-vpn script. 8- Inclusion of new script pbx-status.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Web Callback Portlet is a portlet to be used with Liferay portal (other JSR 186 compliant portals might also work). Customers are entering information into a form and are put intouch, via phone, with a customer representative.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22

    cyber-wrt PBX

    Cyber-wrt pbx is embedded system in DD-Wrt router

    ############################################### #--- CYBER-WRT by Christian Zeler / Comdif Telecom ---# #----------------- http://cyberhotel.comdif.com ------------------# ############################################## You can find 2015 news Cyber-hotel versions on http://cyberhotel.comdif.com including cyber-hotel on freepbx - Cyber-hotel decktop. . Cyber-wrt is a complet Asterisk IPBX and Hotspot system embedded in DD-Wrt router. Last version is build for ASUS RT-AC56U router It is working on Debian with asterisk pbx and original captive portal system to offer a reliable Hotspot system. It's first an original IPBX GUI with all features needed for company PBX. it include if you need a Hotel GUI offering what a Hotel PBX must do billing, check-in check-out, wake-up, housekeeping, direct call in room and many more. It include also a captive portal system for internet access controle using one lan port on your router. Try it, you will not belie
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Kazoo Live Medium

    Kazoo Live Medium

    Kazoo Live Medium. From Null to a Full Featured PBX on minutes

    From Null to a Full Featured PBX in matter of minutes!! If you want: - To boot or install quickly Kazoo on your server. - To test about how it works, without installing on your hard drive. - To install on cluster environment - To install if your previous platform go downtime. This is a suitable option. What is included? Monster-UI Open Source Apps, like SmartPBX, CallFlows, PBX Connector, Voicemails, Faxes, Accounts and Number Manager Kazoo v4.3.x Kamailio v5.1 FreeSWITCH v1.8.x Bigcouch / Couchdb 2.2 RabbitMQ How to start up: - Burn the ISO image on USB Stick, or also on DVD - Boot it, choosing First boot option. - After starting up, login as root user, with password 'kazoo' - Execute 'install_kazoo' from bash shell. There are some config steps (hostname, IP Address. If you have issues starting kamailio, edit postgresql.conf after switching to postgresql user; set 'max_connections = 300' or higher value .
    Downloads: 0 This Week
    Last Update:
    See Project
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