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.

  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

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  • 1
    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: 36 This Week
    Last Update:
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  • 2
    YetiForce CRM

    YetiForce CRM

    The most affordable CRM system according to Capterra

    Are you looking for a system to boost your sales? Do you want to improve your relationships with customers? Do you want to contribute to the fastest growing open source project on GitHub? You can use YetiForce completely free of charge. With YetiForce’s help you will manage 12 business processes in your company, no matter the size. The vast number of features available for free helped us win the first place in Capterra’s “Most Affordable CRM Software” ranking. YetiForce’s open source code was released under a very flexible and liberal license, which gathers a large and active community around the project. You too can contribute to it no matter if you are a professional programmer or software development is just your hobby. Download YetiForce for free and find out why you should become one of more than 250 000 people who already use it. Testing versions: GitStable: https://gitstable.yetiforce.com/ GitDeveloper: https://gitdeveloper.yetiforce.com/
    Downloads: 22 This Week
    Last Update:
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  • 3
    Gammu

    Gammu

    Cellular manager for mobile phones/modems

    Gammu is a cellular manager for mobile phones/modems. It contains libraries and functions for ringtones,logos,phonebook,SMS,etc. (used by external software), a command line version (with backup/restore) and SMS gateway (with MySQL and PostgreSQL supp
    Downloads: 18 This Week
    Last Update:
    See Project
  • 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: 10 This Week
    Last Update:
    See Project
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  • 5
    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: 5 This Week
    Last Update:
    See Project
  • 6
    Modem Manager GUI

    Modem Manager GUI

    Frontend for ModemManager 0.6/0.7, Wader and oFono

    Modem Manager GUI is a simple GTK based graphical interface compatible with Modem manager, Wader and oFono system services able to control EDGE/3G/4G broadband modem specific functions. You can check balance of your SIM card, send or receive SMS messages, control mobile traffic consuption and more using Modem Manager GUI.
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    Downloads: 8 This Week
    Last Update:
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  • 7
    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: 5 This Week
    Last Update:
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  • 8
    Please visit http://dev.frontlinesms.com
    Downloads: 2 This Week
    Last Update:
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  • 9

    SCMxx

    Management tool for Siemens Mobile phones

    SCMxx allows you to exchange certain types of data with mobile phones made by Siemens Mobile. It works with the S25, S35i, M35i, C35i, SL45, S45 and ME45 and probably others.
    Downloads: 7 This Week
    Last Update:
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  • 10
    Asterisk Channels Live

    Asterisk Channels Live

    This is a PBX dashboard showing the peer,queue,agent at real time

    http://www.astchannelslive.com/sourceforge.php This is a dashboard work with Asterisk(FreePBX) any other installation: 1. Showing the peer status 2. queue,agent at real time 3. Hangup, Spy,....
    Downloads: 3 This Week
    Last Update:
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  • 11
    Use the Windows Telephony Application Programming Interface to create your own TAPI CTI programms with Delphi (now D4-D7).
    Downloads: 4 This Week
    Last Update:
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  • 12
    Series60-Remote is an application to manage your mobile phone. You can send and receive SMS messages directly on your computer. It also provides a complex contact and file management.
    Downloads: 1 This Week
    Last Update:
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  • 13
    Fritz!Box Telefon-dingsbums
    Das Fritz!Box Telefon-dingsbums ist ein Outlook-Addin, welches ein direktes Wählen der Kontakte aus dem Computer ermöglicht. Zusätzlich bietet es nützliche Funktionen, wie einen Anrufmonitor oder Rückwärtssuche.
    Downloads: 1 This Week
    Last Update:
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  • 14
    JFritz is a application written in Java, which makes it possible for AVM FRITZ!Box users to download the caller history from their box and manage it on their desktop pc.
    Downloads: 1 This Week
    Last Update:
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  • 15
    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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  • 16
    nfritz ist ein AVM FRITZ!Box Anrufmonitor Gadget zum Anzeigen von eingehenden und ausgehenden Telefon-Verbindungen in der Windows Vista Sidebar.
    Downloads: 1 This Week
    Last Update:
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  • 17
    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:
    See Project
  • 18
    Accent Tool Suite

    Accent Tool Suite

    Accent interfaces and controls systems through goals and policies

    Accent (Advanced Component Control Enhancing Network Technologies) is a comprehensive tool suite that interfaces a variety of communications systems and allows these systems to be controlled through goals (high-level user aims) and policies (lower-level system rules). Accent has been applied to the domains of: o Call Control: for telecommunications, particularly call control in Internet telephony o Home Care: for home automation and telecare, particularly for domestic appliances and devices to support home care o Sensor Networks: sensor networks, particularly managing wind farms However, the approach is generic and extensible for managing other kinds of systems. Accent is essentially software. As most of Accent in in Java, it needs at least a Java Runtime Environment but more likely a Java Software Development Kit. To interact with the real world, Accent needs relevant hardware such as a communications server (softswitch) or home automation equipment.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    ACAT is a Web-based address and contact management system including a full user accountment written in PHP4. ...we also want to provide a collection of perl/java clients to guarantee fast access to the information stored in the database.
    Downloads: 0 This Week
    Last Update:
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  • 20
    Android Birthday Reminder
    This android app reminds you about upcoming birthdays. You can read and write the date of birth of all contacts in your address book. This project moved to GitHub: https://github.com/sealor/BirthdayReminder
    Downloads: 0 This Week
    Last Update:
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  • 21
    AGIS stands for Asterisk Groupware Integration Server. It provides a SOAP backend for access and configuration of the Asterisk PBX. Further it implements a SOAP based Asterisk application for E-Groupware with management functions for users and admins.
    Downloads: 0 This Week
    Last Update:
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  • 22
    Asterisk PBX Integration Zimlet is an Extension for Zimbra Collaboration Suite. The Zimlet does Interface with the Asterisk Manager Interface to integrate with Asterisk PBX. The main focus is dial-on-click for Phone numbers inside Contacts and Emails.
    Downloads: 0 This Week
    Last Update:
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  • 23
    Blauwahl
    A Client-Server application to make votings with life evaluation via Bluetooth. Server is written in Java for use an any platform. Client is a Java-midlet for use on most mobile phones. It is result of a TU-Ilmenau software project. (See the Credits)
    Downloads: 0 This Week
    Last Update:
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  • 24
    CAPI based Voice Phone communication DLL (Win32) based on the AVM CAPI ADK. All CAPI operations are encapsulated in an own Thread. Functions: Multiple connections, voice file transmit/receive, line crossconnect
    Downloads: 0 This Week
    Last Update:
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  • 25
    This project has moved to SourceForge (2011-10-01). Callmonitor enables you to perform arbitrary actions upon incoming calls on your AVM Fritz!Box
    Downloads: 0 This Week
    Last Update:
    See Project
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