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. 2.3.2 Latest

    Bug Fixes

    • address crash on budy cleanup
    • allow mwi without message count
    • continue webdav calendar queue on reply error
    • hold on makel
  2. 2.3.1

    Bug Fixes

    • network issues
    • queue credential jobs
  3. 2.3.0

    Features

    • debounce network changes

    Bug Fixes

    • add transport to SIP calls
    • hidapi build with new libusb
    • improve network handling
    • make addTransport const
    • make preferredCodecs work
    • pjsip network change crash
Complete changelog on GitHub