Telephone Systems / Grandstream
UCM6304
The UCM6304 is designed for medium to large businesses that require a significantly higher number of users, concurrent calls, trunks, conferences, and video. It features more FXS/FXO ports, enhanced hardware, and the capacity to manage multiple conference rooms, collaborative video, and more.
Main features
- Maximum users: ~2,000.
- Concurrent calls: ~300.
- Analog ports: 4 FXS / 4 FXO.
- Three Gigabit ports with PoE+, USB 2.0 and 3.0 ports, SD slot, color display.
- No licensing fees for extensions; includes support for video conferencing, API integration, and centralized management via GDMS.
Technical specifications
Maximum Users
~2000 usuarios
Concurrent Calls
~300 llamadas
Video Conferencing
Muchas salas de video, más usuarios por sala que los modelos menores VoIP Supply
Analog Ports
4 FXS / 4 FXO
Network Ports
3 × Gigabit PoE+
Display / Visual Control
LCD a color touch screen (~320×240)
Storage
USB / SD
About the brand
The UCM6304 represents one of the “core” options in the series, designed for businesses that demand strong performance, additional analog trunks, conferencing, and video. It is ideal for organizations requiring robustness, reliability, and a wide range of integrated features without incurring extra costs for each function.

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