- General office use
- 3-Line LCD display (KX-NT543)
- 6-Line LCD display (KX-NT546)
- Speakerphone with wideband audio and HD voice
- Electronic hook switch (EHS)
- 10/100-BaseTX Ethernet port x2
- PoE (Power over Ethernet)
- Extended handset cords
- Lower standby power consumption
