Model: Panasonic KX‑DT543RU
Device Type: Digital system telephone for Panasonic PBX systems (digital/hybrid port) 
Display: 3‑line LCD (3 lines × 16 characters) 
LCD Backlight: Yes
Display supports Cyrillic characters: Yes 
Programmable CO/Function Keys: 24 flexible keys with dual‑colour LED indication 
Soft Keys: 4 soft keys 
Navigator / Cursor Keys: Yes 
Call Log (Incoming/Outgoing): Yes
Speakerphone (Hands‑Free): Full duplex speakerphone (hands‑free) 
Headset Port: Yes (2.5 mm jack) with EHS (Electronic Hook Switch) support 
Wall Mountable: Yes (optional wall mount kit)
Dimensions (W × D × H):

• High (tilt) position: 267 × 170 × 180 mm 

• Low (tilt) position: 267 × 187 × 155 mm
  Weight: Approximately 1,070 g 
  Color Options: Black and White 
  Optional Accessory: DSS console 48‑programmable‑button module (model KX‑DT590) supported.
  Compatibility: Works with Panasonic digital PBX systems such as TDA, TDE, NCP, NS series.
  Production Status: Discontinued.