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

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  • 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.
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    Downloads: 205 This Week
    Last Update:
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  • 2
    Asterisk GUI client, VICIdial

    Asterisk GUI client, VICIdial

    VICIdial Contact Center Suite

    This software suite is designed to extend the functionality of the Asterisk PBX through platform-independant web-client applications. Includes the VICIdial inbound/outbound contact center application. The suite is scalable across multiple Asterisk servers.
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    Downloads: 94 This Week
    Last Update:
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  • 3
    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)
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    Downloads: 25 This Week
    Last Update:
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  • 4
    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: 19 This Week
    Last Update:
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  • 5
    Kalkun
    Kalkun is an open source web-based SMS (Short Message Service) manager. It uses Gammu SMSD (part of gammu family) as SMS gateway engine to deliver and retrieve messages from your phone/modem. Documentation is on the wiki: https://github.com/kalkun-sms/Kalkun/wiki Development and source code can be found on github: https://github.com/kalkun-sms/Kalkun/
    Downloads: 18 This Week
    Last Update:
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  • 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: 13 This Week
    Last Update:
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  • 7
    Kablink
    Kablink open team collaboration software uses social networking to unify team workspaces w/ real-time web conferencing. Collaboration for knowledge networking, program management, communities-of-practice, telework, other business process/functional areas
    Downloads: 2 This Week
    Last Update:
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  • 8
    ROMs, Kernels & Tools by Javilonas

    ROMs, Kernels & Tools by Javilonas

    ROMS & KERNEL by Javilonas

    Desde aquí podréis descarga de ahora en adelante todas mis ROMs, Kernels y Tools. Donaciones son agradecidas: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=XWECGLMQRQUCU GPL: https://github.com/javilonas
    Downloads: 1 This Week
    Last Update:
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  • 9
    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: 2 This Week
    Last Update:
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  • 10
    This is a Win32, VC++ MFC application to manage Nokia mobile phones melodies. Includes VC++ source code and Rational Rose UML model.
    Downloads: 2 This Week
    Last Update:
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  • 11
    Using the new C# Dll from swig portability of Openobex/ObexFtp to write a nice GUI able to transfer file between two devices with obex protocol. More Info’s here: http://cs-obexftp.wiki.sourceforge.net/
    Downloads: 1 This Week
    Last Update:
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  • 12
    Linuxsms is a Perl script to send SMS to GSM phones. There is support for multiple servers/gateways (some servers require registration). The script has an adressbook, the ability to compress SMS, and the ability to check for new versions.
    Downloads: 1 This Week
    Last Update:
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  • 13
    The Open Source IMS Core Project
    Downloads: 1 This Week
    Last Update:
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  • 14
    ST-PBX Live is a GNU/Debian Linux distribution integrating Asterisk, freePBX and other tools to try from CD or install in HD a complete VoIP system.
    Downloads: 1 This Week
    Last Update:
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  • 15
    Skipper is a powerful accessibility package for Linux which enables severely physically disabled people with many different conditions to make full use of applications that normally require good mouse and keyboard control.
    Downloads: 1 This Week
    Last Update:
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  • 16
    Next generation web-based, multi-tenant, distributed, mulit-lingual, inbound, outbound Video enabled VoIP & VVoIP call/ contact center solution for Asterisk with Built-in phone, IVR, CRM, Predictive dialer, ACD, Chat, Mail, Fax, Video and other features.
    Downloads: 0 This Week
    Last Update:
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  • 17
    MOR is Billing System for Asterisk PBX. It supports postpaid/prepaid billing with LCR and Fail-Over. Realtime Asterisk management using web interface. Reporting and advanced rating. Based on fast C application for Asterisk and Ruby On Rails GUI.
    Downloads: 0 This Week
    Last Update:
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  • 18
    This is a project to keep track assets via GSM, GPRS and GPS technologies.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Asterisco Settings is a Webmin module to configure and manage Asterisk PBX
    Downloads: 0 This Week
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  • 20
    JAVA Asterisk Predictive Dialer using AMI (Asterisk Manager Interface)
    Downloads: 0 This Week
    Last Update:
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  • 21
    This simple php page show a list of queues and his members and agentes activity by quering Astrerisk through the Manager Interface, reloading itself every n seconds. Suggestions are welcome.
    Downloads: 0 This Week
    Last Update:
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  • 22
    Bluetooth Instant Messenger Valhallachat
    Valhalla Chat is a Bluetooth Instant Messenger (IM), that provides a common messaging platform for mobile phones, desktop computers and pdas.
    Downloads: 0 This Week
    Last Update:
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  • 23
    CallFilter applies rules to incomming Phone Calls. Much like a network firewall.
    Downloads: 0 This Week
    Last Update:
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  • 24
    Campus Ubicuo es un proyecto que se basa en el uso de los nuevos dispositivos portátiles para ofrecer a los usuarios movilidad en un Campus por medio de servicios telemáticos avanzados sobre tecnologías inalámbricas implementados con Sw Libre
    Downloads: 0 This Week
    Last Update:
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  • 25
    Configure your PC to access the Internet using the mobile and keep your connection charge under control. If program do not run install gambas2-gb-gtk gambas2-gb-qt packages. Additional language support for: Italian, French, Spanish, Croatian.
    Downloads: 0 This Week
    Last Update:
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