Nextcloud Talk provides end-to-end encrypted audio/video conferencing, chat rooms, and chat messaging designed for private cloud environments. It combines chat, voice/video calling, and webinar capabilities with Nextcloud’s file sharing and collaboration apps. All communication can be self-hosted (or provided by an enterprise Nextcloud host), ensuring data remains under the user’s control. Talk is fully federated via the Matrix protocol, so users on different Nextcloud servers can communicate securely across organizations. The service supports features like screen sharing, AI-driven live transcription and translation, meeting recording, breakout rooms, and webinar controls. Its privacy focus is highlighted by marketing as “the first GDPR-compliant private cloud collaboration tool consolidating all functions in one app”. In summary, Nextcloud Talk is effectively a Slack/Zoom style tool integrated into the Nextcloud Groupware suite for secure team communication.