Hangouts is not available as a self-hosted solution but there are plenty of alternatives for power users and business that want to host a solution on-premise. The best Self-Hosted alternative is Element, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Hangouts and many of them are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to Hangouts are Jitsi Meet, Matrix.org, Wire and Zulip.
Balloon is a virtual events platform, focusing on attendee engagement, enabling organizers to monetize their events efficiently. Events can have live video streaming stages, networking (1:1 or small group), expo booths, breakout sessions, sponsors.
The future of Team collaboration. Secure. Cross platform. Manage Teams, Groups, Private & Public Channels. Invite. Meet. Work. Automate with over 700'000 Apps. Built-in Webinar & Webmeetings. Available as PrivateCloud or On Premise. Decentralized.