GOnnect – the lightweight open-source UC client

GOnnect provides a secure, sovereign platform for enterprise communication, integrating SIP, chat, and video conferencing into a high-performance UC client. As a fully open-source solution, it eliminates licensing fees and vendor lock-in while ensuring total data privacy. Its modular architecture adapts to your scaling needs and integrates seamlessly into existing infrastructures. Currently available for Linux (Flatpak), with a Windows version in active development, GOnnect delivers a customizable, streamlined communication experience.

Why GOnnect

Digital sovereignty

Digital sovereignty exists where control and transparency come together. GOnnect is designed for companies and organisations that want to manage their communications independently, and it relies consistently on open source technology. In combination with self-managed operation, sensitive data remain entirely under your control. Open standards create secure interoperability with existing IT systems and prevent dependencies on proprietary providers.

Enterprise use

GOnnect was developed for professional enterprise use and meets the communication and collaboration requirements of modern organisations reliably and securely. The Unified Communications (UC) and Session Initiation protocol (SIP) clients adapt flexibly to existing IT structures regardless of company size and can be easily integrated into existing systems. Stability, scalability and security are the focus here. As a softphone, GOnnect offers an efficient and secure communication platform that supports daily operations and fits precisely into a wide variety of working environments. This provides companies with a solution that integrates seamlessly into professional workflows and remains reliable in the long term.

100% open source

GOnnect is 100% open source according to GPLv2 – the source code is open, verifiable and customisable. This creates trust and transparency: as a UC and SIP client, GOnnect has no hidden functions and is free of dependencies. Companies benefit from legal clarity, technological freedom and an active open source community that continuously provides updates and new features. This makes GOnnect the ideal softphone for organisations that value full control, security and sustainable transparency.

Convenience meets technology

GOnnect integrates seamlessly into the digital workplace and offers clever features that make everyday work noticeably easier. Intelligent busy-lights, flexible audio settings and automatic media control for incoming calls ensure a smooth user experience. As an open source UC client, SIP client and softphone, GOnnect is a secure and customisable solution. Important functions are directly accessible via the system tray or desktop search, while convenience features such as auto-start, global shortcuts and design customisation create a coherent and efficient overall picture.

Changelog

  1. 2.0.9 Latest

    Bug Fixes

    • ui: next button in template wizard never enabled
  2. 2.0.8

    Bug Fixes

    • add two workarounds for Qt 6.10 and enable them by default
    • GOW_002 disable GPU in chromium
    • GOW_003 disable renderer accessibility in chromium
    • don't bail out if there is no secret portal
    • do not open a second audio stream while sharing the screen in video conferences
    • sometimes the camera could not be activated - this is fixed

    Other changes

    • use Qt 6.10
  3. 2.0.7

    Bug Fixes

    • add template for STARFACE PBX
    • add platform abstraction layer
    • add dummy platform
    • use libnotify instead of portal
    • forward initial Jitsi mute to headset
    • prevent changing of camera in confernece to cause inifinite loop
    • bump Qt to 6.9.3
    • do not hold other calls on new incoming call when ringing
    • added mutex for addressbook operations
    • display past recurrent event instances that have been updated
    • enable buddy subscription for eds/akonadi sip uris
    • async component retrieval (calendar) fix freeze on startup
    • adjust path for eds avatar images
    • make conference mute button work again
    • fixed screen share button on conference page
    • fixed hold/unhold handling conflicts
    • show correct page on call/conference start/end
    • fixes for too narrow screen
    • show own display name in chats
Complete changelog on GitHub