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

  • Automated RMM Tools | RMM Software Icon
    Automated RMM Tools | RMM Software

    Proactively monitor, manage, and support client networks with ConnectWise Automate

    Out-of-the-box scripts. Around-the-clock monitoring. Unmatched automation capabilities. Start doing more with less and exceed service delivery expectations.
  • Finance Automation that puts you in charge Icon
    Finance Automation that puts you in charge

    Tipalti delivers smart payables that elevate modern business.

    Our robust pre-built connectors and our no-code, drag-and-drop interface makes it easy and fast to automatically sync vendors, invoices, and invoice payment data between Tipalti and your ERP or accounting software.
  • 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.
    Leader badge
    Downloads: 339 This Week
    Last Update:
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  • 2
    Mumble

    Mumble

    Low-latency, high quality voice chat for gamers

    Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. It includes game linking, so voice from other players comes from the direction of their characters, and has echo cancellation so the sound from your loudspeakers won't be audible to other players.
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    Downloads: 193 This Week
    Last Update:
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  • 3
    Audio/Video Conference software for Instant Messengers. It aims to provide Audio/Video conferencing for as many Instant Messengers as possible through a modular design.
    Downloads: 7 This Week
    Last Update:
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  • 4
    Open source Call Center software, based on H.323/SIP protocols. Contains Nauphone(Software multi-channel IP Phone, with conferences and ability to integrate with other systems(CRM)) and NauLib(VoIP Library based on OpenH323 and Vovida SIP)
    Downloads: 0 This Week
    Last Update:
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  • Automated quote and proposal software for IT solution providers. | ConnectWise CPQ Icon
    Automated quote and proposal software for IT solution providers. | ConnectWise CPQ

    Create IT quote templates, automate workflows, add integrations & price catalogs to save time & reduce errors on manual data entry & updates.

    ConnectWise CPQ, formerly ConnectWise Sell, is a professional quote and proposal automation software for IT solution providers. ConnectWise CPQ offers a wide range of tools that enables IT solution providers to save time, quote more, and win big. Top features include professional quote or proposal templates, product catalog and sourcing, workflow automation, sales reporting, and integrations with best-in-breed solutions like Cisco, Dell, HP, and Salesforce.
  • 5
    SiXcli is the C++/CLI wrapper over the sipXtapi unmanaged code. SipXCli cloned from the SipXTapiDotNet project that can be found at SipFoundry.org.
    Downloads: 0 This Week
    Last Update:
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  • 6
    Downloads: 0 This Week
    Last Update:
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  • 7
    XSP
    XSP is an eXtensible socket-based protocol. XSP 1.0 is an XSP client. The main idea of this project is to connect two devices directly without any servers between them. Chat, file sharing and voice chat are supported now. Authors: m1kc and Solkin.
    Downloads: 0 This Week
    Last Update:
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  • 8
    Yes Voip Billing - free opensource billing system for GnuGK.
    Downloads: 0 This Week
    Last Update:
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