Product details

The KX-NT543 business phone comes with a 3-line display screen, 24 programmable keys for monitoring the status of other extensions or assigning as function keys, plus dual Ethernet ports, a built-in Electronic Hook Switch for Plantronics headsets and the power- and cost-saving Eco-Mode.

Specification Description
LCD display 3 lines / 24 characters
LCD backlight Yes
Flexible CO keys 24
Soft keys 4
Call log (incoming/outgoing) Yes / Yes
Ethernet port 2 ports (10/100 Mbps)
Power over Ethernet (PoE) Yes
Headset port Yes
Electric hook switch (EHS) Yes
Navigator keys Yes
Speakerphone Yes
Eco mode Yes
Wall mountable Option
Dimensions (W x D x H) High position: 267 x 170 x 180 mm / low position: 267 x 187 x 155 mm
Weight 1110 g

HD audio

Hearing is definitely believing with the KX-NT500 series. Precise, wide-band high-definition voice lets you catch every word whether you're communicating over the handset, speakerphone or optional headset. An Echo Cancellation feature combined with a large acoustic chamber enhance sound quality, adding fidelity and elegance to your voice communications. The result is more productive voice communications with an "in person" feeling on which client relations often depend.

Fast Ethernet speeds

The KX-NT500 features Dual Ethernet ports (LAN and PC ports) for fast data transfer. Since you only need a single cable running to your desk, wiring costs are reduced along with desktop clutter.

Mobile freedom

Take advantage of the built-in Electronic Hook Switch available on all phones in the line-up to connect a wired headset without the need for an extra adaptor or special cables.


Save on energy costs with the KX-NT500 series' Eco-Mode feature which lowers power consumption during calls and while the phone is on standby. The KX-NT546 in Eco-Mode uses only one watt of power when not in use and just over one watt during a call.