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.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    Bayonne is supported from Savanna.gnu.org. Please visit there. Sourceforge is generally depreciated except for mailing lists, but updated releases will be posted here from time to time.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    *starShop is a professional billing and monitoring system based on Asterisk PBX for call shops (taxiphone), Internet cafes, libraries, schools and any place that provide phone calls for public use. For the latest news visit tinyurl.com/2cfwnn
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    The alternative hand set manager for Panasonic X70
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Skinny (SCCP) Channel Driver for the Asterisk Open Source VOIP Platform. This project has been superseded by the chan-sccp-b project at sourceforce !! => http://chan-sccp-b.sourceforge.net
    Downloads: 0 This Week
    Last Update:
    See Project
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 5
    A suite of programs for collecting, storing, and distributing incoming caller ID information. All applications communicate through an XML-based, openly-defined protocol. Supports notification of users when calls arrive, and historical storage of incomin
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    CallFilter applies rules to incomming Phone Calls. Much like a network firewall.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Find out who's calling you before pick up the phone. No extra hardware is required as long as your modem is supported.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    The CallerID ActiveX Control can read caller ID information from any device that supports Caller ID. It raises a Ring event each time the modem detects a change in the Ring indicator, but the control will not answer incoming calls. The control supports ma
    Leader badge
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Cisco voice web interface is a web tool designed to help maintaining VoIP on cisco platforms. Based on a set of perl parser's it now allow's to perform quite all operation's needed to check voice call's. In close future planned to add dial-peer crea
    Downloads: 0 This Week
    Last Update:
    See Project
  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    a .NET Windows TAPI Dialer With Outlook Contects Support
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    A complete Delphi/Kylix based interface for Dialogic hardware using the System Release 5.0 or higher.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    This is a graphical frontend to vbox, the isdn4linux answering machine. It has a nice user interface, and it's completely based on the network daemon vboxd. Gvbox is written in C++ using GTK-- for the user interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    IVAM is short for "ISDN Voice Answering Machine". It is intended to be a highly configurable, simple, up-to-date and efficient replacement for vbox/vgetty as an ISDN-based answering machine. While the core is written in C, the high level answering mach
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    A transport that enables the Jabber IM platform to send Short Messages (SMS) .
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    KAlcatel

    KAlcatel

    Application for Alcatel 50x and 70x phones

    KAlcatel allows you to manage messages, calls, contacts, todos and the calendar in your Alcatel (tm) One Touch 50x and 70x mobile. This project is not maintained anymore, use Wammu instead (http://wammu.eu/)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    MFlash is a tested SMS engine written in pure Java.Supports OTA, SMPP, CIMD2. It has been implemented in Banks for mobile banking, Tractor Manufacturer for Sales Force Integration, Goverment for customs clearance status,White goods multinational for CRM.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    meicd - UNIX command line run daemon that connects to Nortel Meridian MAX MEI TCP/IP ports. Records PBX event information for use in generating reports and and tracking call flow. Simply decodes the protocol and dumps the data into flat files.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    MumurWeb will be a comprehensive webinterface for Murmur servers based on PHP. Murmur is the server component for the Open-Source voice communication Mumble.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19

    NT1 Commands

    NT1 Commands for Netmode, Santis & Elcon NTs

    NT1 Commands for Netmode, Santis & Elcon NTs
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    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:
    See Project
  • 21
    SCMtt is a graphical frontend for the command line tool SCMxx that allows you to access your Siemens mobile phone.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Siphon will ultimately be a Software Voice-Over-IP phone using the SIP protocol. It will support quicknet cards as well as traditionnal soundcards. It is developped for Linux (gtk) and the win32 platform.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    "Telephony Open Source Interface", a standard telephony interface and library for terminal settings, third-party call control, and other common telephony requirements of user applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Tambur Messaging Gateway is a Java (J2EE) based SMS/MMS messaging gateway. Feature highlights include support for most SMSC/MMSC protocols, an advanced message router, complete web-based management and support for billing.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    The program represents a midlet for a call of service of the voip operator for connecting two phones.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • Next