- HD Voice
- 6-Line (KX-NT546) or 3-Line (KX-NT543) Backlight LCD Display
- 24 Flexible CO Buttons
- 2 Ethernet/PoE
- EHS support
- 3 Line display with backlighting- 24 freely programmable function keys- High-quality wideband voice transmission- Plantronics EHS-compatible - (PL-84757-01)- 2x 100MB Ethernet ports PoE