Model: Panasonic KX‑DT546RU
Device Type: Digital system telephone (for use with Panasonic PBX systems)
Main Display: 6 lines × 16 characters (LCD)
LCD Backlight: Yes
Programmable CO/Function Keys: 24 flexible keys with dual‑color (LED) indication 
Soft Keys: 4 soft keys 
Navigator / Cursor Keys: Yes 
Call Log: Incoming and outgoing call log supported
Speakerphone: Full‑duplex speakerphone (hands‑free)
Headset Port: Yes (2.5 mm jack) with Electronic Hook Switch (EHS) support 
Hearing Aid Compatible (HAC): Yes 
Tilt/Desk Mount Positions: Two angle positions (High and Low)

• High position: 267 × 170 × 180 mm 

• Low position: 267 × 187 × 155 mm 
  Weight: approx. 1,090 g (including handset, handset cord and stand) 
  Colors Available: Black and White 
  Compatible PBX Systems: Panasonic TDA / TDE / NCP / NS series (digital or hybrid port) 
  Additional Features:

• 30 ring melodies 

• 24 programmable buttons for line/function, dual‑color LED status indicationAuto‑redial, mute microphone, headset support and more 

• Option to add DSS console (48‑button module) KX‑DT590 for increased programmable keys 
  Notes: Production discontinued.