The V-Series 2RU 24 pushbutton key display panel with 4-pin XLR or 5-pin XLR male headset connector. The key-panel has 24 talk pushbutton keys and 24 listen pushbuttons including one reply/answer-back key and 8 shift pages. Each key has associated up/down audio level control buttons. The 2RU key panel is offered with an additional dial keypad which allows telephone dialing and quick access to menus. The panel menu provides user set-ups and assignment options. The rear panel has audio I/O and GPI/O connections. This product is also available as lever and rotary key-panel types.