Technical
| Feature | 2.8" Device | 4.3" Device |
|---|---|---|
| User Interface | 2.8” color LCD with backlight | 4.3" color screen with backlight |
| Audio Features | Optima HD voice with Acoustic Shield and Smart Noise Filtering | Optima HD voice with Acoustic Shield and Smart Noise Filtering |
| Basic Features |
Up to 12 SIP accounts PoE support Stand with two adjustable angles, wall mountable |
Up to 16 SIP accounts PoE support Stand with two adjustable angles, wall mountable |
| Advanced Features |
Wi-Fi via WF40/WF50 Bluetooth via BT41/BT51 Support expansion modules Support USB recording |
Wi-Fi via WF40/WF50 Bluetooth via BT41 Support expansion modules Support USB recording |
| Connectivity |
Dual-port Gigabit Ethernet Headset, EHS support |
Dual USB ports Dual-port Gigabit Ethernet Headset, EHS support |