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. 2.2.0 Latest

    Features

    • add Blinkstick busylight support
    • add template for 1&1
    • adding global shortcuts support for windows
    • basic MWI support
    • delete old history entries
    • display sip registration status
    • feeder plugin retry mechanism
    • ical rrule parsing optimization
    • ldap: configurable contact attribute mapping
    • pause/resume media on windows
    • plugins for microsoft calendars and contacts
    • pre-fill missing it/es translations
    • rtt ui integration
    • ui: leave conference via systray menu
    • update pjproject to 2.17
    • windows signing

    Bug Fixes

    • base edits on SSL default configuration
    • build with certificate patch
    • c++ standard and guarding updates
    • clear out URI encoded number input
    • code review loop
    • disable WMME in pjsip
    • do not show favorites in 'most called' list
    • do not wipe all contact sources on by-source removals
    • Ensure correct tag value type in flatpak manifest
    • handle direct pjsip mute again
    • home/call switch tab notification reset
    • if so configured, do not verify CA even if they are state
    • ignore certain ssl errors when verifyServer is false (webdav)
    • ignore verification ssl errors if verifyServer=false
    • make MWI subscription configurable
    • make ReadOnlyConfdSettings treate string lists correctly
    • more sip codes lead to auth request
    • mwi recursions
    • potential crash on HeadsetDevice destroyed
    • prevent unhold on currently changing call
    • raise window after showing it
    • reenable CardDAV plugin
    • resolve feeder manager deadlock
    • restore functionality for feeders without network requirements
    • robustness for media and contacts cache
    • tab switc
    • ui: do not treat room names beginning with digits as phone numbers
    • ui: give focus to call screen when startet via enter
    • use verifyServer flag for CA verification with webdav
  2. 2.1.0

    Features

    • dynamic widget pages/dashboards
    • introduce custom widget settings and a new web display widget
    • calendar expansion; show all appointments, not only the ones with Jitsi Meet link
    • do not send notifications for conferences/appointments that have been joined early
    • toggle whiteboard in jitsi meet
    • automatically select first search item in global search
    • allow pre-processing of search strings

    Bug Fixes

    • initialization of the secret portal which prevented GOnnect to start in some cases
    • local shortcuts and help dialog
    • first aid menu improvements
    • jitsi meet chat now cleared when leaving room
    • fixed selection behaviour in call list
    • prevent entering of invalid DTMF chars to prevent crash
    • update EDS to 3.59.1
    • loading of own avatar
    • optimize search for pure numbers
    • unhold other call when starting conference
    • default setting for mute system forwarding
    • prevent hold of ongoing call on incoming when busyOnBusy
    • add missing export for CSV addressbook
  3. 2.0.9

    Bug Fixes

    • ui: next button in template wizard never enabled
Complete changelog on GitHub