Grandstream Ucm6304 Ip PBX System

Users: 2000 Concurrent calls: 300 Max concurrent SRTP calls: 200 Video Conference: Up to 30 Voice Conference: Up to 120 Three self-adaptive Gigabit ports (switched, routed or dual card mode) with PoE+ 1USB 2.0, 1USB 3.0, 1SD card interface 320×240 color LCD with touch screen for Shortcut Keys and Scroll Bar