Browse free open source Telephony software and projects for Windows and Mac 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: 133 This Week
    Last Update:
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  • 2
    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: 19 This Week
    Last Update:
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  • 3
    Mobile Mail Checker is a mail client for portable devices: java phones/smartphones/PDAs. It is based on J2ME. The most important features are: POP3/IMAP/SMTP support, reading/writing/replying/forwarding mails, SSL support, multimedia attachments supported
    Downloads: 2 This Week
    Last Update:
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  • 4
    Use this when attachments aren't offered with your email service. (i.e. Proxy Mail). Simply Supply a link to download the 11KB Audio Player and Copy/Paste your Message into the Email. See Website For Demo. http://audiotext.sourceforge.net
    Downloads: 0 This Week
    Last Update:
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  • 5
    Project contains a deployable product with the following vision: To provide a means for people who need to talk, to find someone who is willing to listen. included: rating system, anonymous chat and email, mambo cms, crypto, user queues. (dr phil + ebay)
    Downloads: 0 This Week
    Last Update:
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  • 6
    OrgDirectory is a web-based tool for recording employee/member contact details through a web interface. It features multi-user logins, an optional public interface, skinning, an admin panel and eventually import/export and LDAP/AD sync functionality.
    Downloads: 0 This Week
    Last Update:
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  • 7
    Svarog is a real time web based call center which is based on AsteriskPBX, including technologies such as portlets, ajax (DWR/Dojo), jsf (MyFaces) and SpringFramework.
    Downloads: 0 This Week
    Last Update:
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  • 8
    TrumpetBox Contactless Kiosk  Admin

    TrumpetBox Contactless Kiosk Admin

    Guest WIFI and SMS Marketing Kiosk System

    The TrumpetBox Contactless Kiosk is a business guest WIFI and SMS marketing kiosk system that turns your clients mobile phone into an information kiosk. TrumpetBox kiosk is an access point that your clients connect to while at your business location and view your interactive kiosk interface to perform services or opt-in to receive marketing and outbreak notifications.
    Downloads: 0 This Week
    Last Update:
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  • 9
    A Covide-based Groupware and CRM-solution adapted for efficient resource-management. Resources being both people and objects.
    Downloads: 0 This Week
    Last Update:
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  • 10
    ABCD is an address book server/client system. It is intended to be user friendly, cross platform, and awesome.
    Downloads: 0 This Week
    Last Update:
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  • 11
    The eMATgine services are web services to be used with the multi-protocol and multi-display eMATgine server. They are used like plugins to an eMATgine server.
    Downloads: 0 This Week
    Last Update:
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  • 12
    Googsystray is a system tray app for Google Voice, GMail, Google Calendar, Google Reader, and Google Docs. It notifies on new messages, alerts, etc., and provides basic services quickly.
    Downloads: 0 This Week
    Last Update:
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  • 13
    icemac.addressbook

    icemac.addressbook

    Multi user address book application accessable through the web.

    Multi user address book application accessable through the web. Store, edit, search and export addresses, phone numbers, … using a web browser. Code moved to https://bitbucket.org/icemac/icemac.addressbook Documentation see https://icemacaddressbook.readthedocs.io/en/latest/ New releases (after 6.0.2) see https://pypi.org/project/icemac.addressbook/#history
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    mail2prowl is used to operate the free service http://mail2prowl.de This script receives mails via POP3, reads a special formed recpeint adress and sends the mail to the Prowl webservice. Prowl is a push enabled iPhone Application with a nice API.
    Downloads: 0 This Week
    Last Update:
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  • 15
    This is a java-written daemon that functionss as an e-mail to sms bridge. It periodically checks a POP3/IMAP account and sends a brief part of the new emails to a pre-configured sms-enabled mobile phone.
    Downloads: 0 This Week
    Last Update:
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  • 16
    LanBiz is a free, Open Source Server Suite, mostly fitted for SOHO (Small Office/Home Office) environments. The final LanBiz will include: an internet gateway/firewall, proxy, mail, file/print, fax/telephony server and more!
    Downloads: 0 This Week
    Last Update:
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