9Com

By opting for 9Com, users also benefit from free audio and video conferencing, guest access, screen and file sharing, LiveChat, LDAP Group Sync, two-factor authentication (2FA), E2E encryption, SSO, dozens of OAuth providers and unlimited users, guests, channels, messages, searches and files.

KEY FEATURES:

* Multiple Rooms
* Direct Messages
* Private Groups
* Public Channels
* Desktop and Mobile Notifications
* Edit and Delete Sent Messages
* Mentions
* Avatars
* Markdown
* Emojis
* Sort conversations alphabetically or group by activity, unread or favorites
* Transcripts / History
* File Upload / Sharing
* Media Embeds
* Link Previews
* LDAP Authentication
* REST-full APIs
* Remote Locations Video Monitoring
* Native Cross-Platform Desktop Application