Feihan is a secure and stable private one-stop office platform with features including instant messaging, organizational structure, audio and video conferencing, and cloud storage, all in a private version. All data is stored within the enterprise or organization, ensuring security and no data leakage! Feihan adheres to a simple and mainstream product design, allowing users to quickly get started without the need for learning.

[Security]
All data is encrypted and stored on servers provided by the customer, supporting public cloud, private cloud, hybrid cloud, and single machine encrypted deployment; data collection, transmission, and storage are fully encrypted, supporting national encryption algorithms, security watermarks, device security management, message auditing, traceability, and is open to source code audits.

[Rich and Stable Instant Messaging]
- Feature-rich: Global search, read receipts, bots, historical messages, organizational departments, etc.
- Type-rich: Text, emoticons, images, voice, video, files, locations, custom messages, etc.
- Security control: Device security management, no local storage of client messages, data cannot be recovered locally after employee departure.
- Multi-device synchronization: Chats and messages are consistent across different devices, and all operations are synchronized.

[Instant and Secure Video Conferencing]
- Feature-rich: Voice, video, screen sharing, chat, and other common functions.
- Unlimited participants: 1v1 or multi-person audio and video, with the upper limit depending on the customer's machine performance.
- Security control: Customizable meeting range, speaking rights settings, designated co-chairs, and other management functions.
- Superior performance: The server can support thousands of people in a voice chat room or hundreds of people in a video chat room on a single machine.

[Convenient and Efficient Cloud Storage]
- Feature-rich: Large files, breakpoint resumption, global search, file sharing, permission control, etc.
- Large files: The upper limit of file size depends on the customer's machine performance, theoretically without an upper limit.
- Global search: Search or sort files in personal or shared spaces, as convenient as a local hard drive.
- Shared space: Share files or folders with members within the organization, group chats, or departments, with detailed read and write management permissions.