Grandstream UCM6304 IP PBX appliance

The UCM6304 is a high-capacity unified communications appliance designed for medium-to-large enterprises. It provides a robust, scalable platform for managing all business communications—including voice, video conferencing, data, and mobility—within a single powerful network hub without recurring licensing fees.

• Supports up to 2000 users and up to 300 concurrent calls
• 4x FXS analog telephone ports and 4x FXO PSTN line ports with lifeline capability
• Built-in platform for voice, video, and data meetings; supports up to 40 participants in 1080p HD video conferencing
• Integrated Instant Messaging (IM), Presence, and Chat platform accessible via desktop, web, and mobile
• Full integration with UCM RemoteConnect for secure, automated NAT traversal and remote worker management
• Three Gigabit auto-sensing RJ45 network ports with integrated PoE+
• Advanced security protection including secure boot, unique certificate, and random default password per device
• Zero configuration provisioning of Grandstream SIP endpoints for simplified mass deployment