Open Source Desktop Operating Systems Telephony Software

Telephony Software for Desktop Operating Systems

Browse free open source Telephony software and projects for Desktop Operating Systems 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
    This project implements a simple STUN server and client on Windows, Linux, and Solaris. The STUN protocol (Simple Traversal of UDP through NATs) is described in the IETF RFC 3489, available at http://www.ietf.org/rfc/rfc3489.txt
    Downloads: 37 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)
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    Downloads: 38 This Week
    Last Update:
    See Project
  • 3
    Seagull is a multi-protocol traffic generator. Especially targeted towards IMS, Seagull supports Diameter (RFC3588 and all applications) over TCP/SCTP and IPv4/IPv6 , TCAP (over SS7 or Sigtran), XCAP over HTTP and Radius.
    Leader badge
    Downloads: 28 This Week
    Last Update:
    See Project
  • 4
    Siproxd is a proxy/masquerading daemon for the SIP protocol. It allows SIP clients (softphones & hardphones) to work behind an IP masquerading firewall or router.
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    Downloads: 31 This Week
    Last Update:
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  • 5
    pcapsipdump is libpcap-based SIP sniffer with per-call sorting capabilities. It writes SIP/RTP sessions to disk in a same format, as "tcpdump -w", but one file per SIP session (even if there is thousands of concurrent SIP sessions). Getting started: http://pcapsipdump.sf.net/
    Downloads: 11 This Week
    Last Update:
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  • 6
    This project has been superseded by OpalVoip (https://sourceforge.net/projects/opalvoip/) and H323Plus (https://sourceforge.net/projects/h323plus/) The OpenH323 project provides full featured, interoperable, Open Source implementation of the ITU H.323 teleconferencing protocol that can be used by personal developers and commercial users without charge.
    Downloads: 10 This Week
    Last Update:
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  • 7
    Stuntman - STUN server and client

    Stuntman - STUN server and client

    High performance, production quality STUN server and client library

    New version 1.2. This is the code to STUNTMAN - an open source STUN server and client code by john selbie. Compliant with the latest RFCs including 5389, 5769, and 5780. Also includes backwards compatibility for RFC 3489. ICE and WebRTC ready. Version 1.2 compiles on Linux, MacOS, BSD, and Solaris. Supports the STUN protocol on both UDP and TCP for both IPv4 and IPv6. Windows binaries are also provided. Additional features are in development. This is a mirror of the code on https://github.com/jselbie/stunserver More details on the project's website: http://www.stunprotocol.org
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    Downloads: 12 This Week
    Last Update:
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  • 8
    A lightweight cross platform IP telephony client using the IAX protocol, designed for use with the asterisk open source PBX.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 9
    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: 2 This Week
    Last Update:
    See Project
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  • 10
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Komendant ERP

    Komendant ERP

    ERP, IP PBX, Accounting, CRM, Time tracking, and etc.

    Comprehensive business management system The full-cycle automation ERP system - [ Full Freeware ] IP PBX - Complete synchronization with CRM system - Call accounting for PBX (PBX billing) - Phone call control and monitoring - Phone recording systems Accounting, Financial management - Trade management, warehouse - Management and tax accounting Corporate information system - Client relations management system (CRM) - Project, tasks, orders management - On-line conferences (forums) - Instant messenger, chat, sending SMS Staff management system [HRM] - Personnel records, documents circulation - Time and Attendance tracking system - Computer usage monitoring (time tracking) - Work time accounting (five levels) - Accrual and deduction system - Fines system (two levels) - Salary calculation Access control systems Management of access rights to the premises Video surveillance system (IP,Analog) Photofixation, Videofixation Technological process automation
    Downloads: 3 This Week
    Last Update:
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  • 12
    The WBXML Library is a C library for handling WBXML (Wireless Binary XML) documents. It consists of a WBXML Parser (with a SAX like interface), a generic WBXML Encoder, and an internal representation of the document (WBXMLTree).
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    Downloads: 3 This Week
    Last Update:
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  • 13
    TelGO Phone : simple iax client modify from iaxcomm. for IAX small provider. Focus to MS windows user. TelGO PBX : Linux IPPBX with Firewall and Web GUI config
    Downloads: 2 This Week
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    See Project
  • 14
    Synchronize bluetooth mobile phone with thunderbird, lightning, sunbird, outlook etc.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15

    BBHH Spoofer

    BD BLACK HAT HACKERS SMS & Email Spoofer

    Using this tool you can send sms or email to anyone using any name/number for sms and email id for email. Its completely free.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    The open-source C++ implementation of the Open Mobile Alliance (OMA) specification - Mobile Location Protocol (MLP).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    OpenAL mixer aims to provide a multiplatform API built on top of OpenAL to get/set volume values (including support for capture devices) and list, select and mute input and output lines.
    Downloads: 1 This Week
    Last Update:
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  • 18

    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: 1 This Week
    Last Update:
    See Project
  • 19
    Very fast and very flexible SIP server
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    XPRT MB612
    Post MB612 OSS Source Code in compliance with OSS License
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    4PSA VoipNow PHP Demo Client is an Open Source software written in PHP demonstrating the 4PSA VoipNow SOAP API interface. The application handles a client registration and a phone terminal creation.
    Downloads: 0 This Week
    Last Update:
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  • 22
    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: 0 This Week
    Last Update:
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  • 23
    Flat File Editor is useful for viewing large fixed-length files that have a well defined record layout. The record layout can be specified such that different fields (corresponding to column positions within the input file) can be placed anywhere on the
    Downloads: 0 This Week
    Last Update:
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  • 24
    The next generation of the Openh323 Gatekeeper project that provides high availability and scalibility for carrier grade, available freely under GNU GPL.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    java telephony API, Dialogic's hardware support, telephony application IDE, mutlichannel telephony applications Server
    Downloads: 0 This Week
    Last Update:
    See Project
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