O]Messenger requires "Server Pro", which acts as a chat server for communication between clients.
For more details on purchasing & installing OMessenger Server Pro:
Why use OMessenger ?
- Cross platform (PC, Mac, Android, Browsers)
- View your Office Online users
- One-on-One private chat with users
- Group Chat with multiple users
- Always-On. Runs as a service in the background.
- Offline / Announcement messages
- LAN Messenger
- No ads.