Key Features

• Alphanumeric display — 1 line × up to 16 characters

• 12 programmable feature / CO keys with dual-color (bi‑color) LED indicators

• Navigation (cursor) key for menu / feature access 

• Hands‑free / speakerphone capability 

• Adjustable volume control:

  • Speaker / hands‑free volume   Ringer / alert volume

  • Handset (receiver) volume 

• Contrast control for the LCD 

• Incoming Call / Message Lamp (LED) for visual indication of calls / messages

• Auto Answer / Mute function  Headset compatibility (jack) 

• Inclination / tilt adjustment of the unit (angle adjust) 

• Extension monitoring keys (to monitor status of other extensions) 

Compatibility & Use Cases

• The KX‑T7730X is an analog proprietary phone — it is not a standard analog POTS phone — and is meant to work with Panasonic PBX / hybrid systems.  

• It can be used as a programming terminal or operator console in hybrid extension ports on analog PBXs such as Panasonic KX‑TEB11, KX‑TES32

• Also compatible (for extension use) with hybrid extension ports of Panasonic digital / IP PBX central units, e.g.:

  • KX‑TDA series (KX‑TDA30, KX‑TDA100, KX‑TDA200) 

  • KX‑TDE series (KX‑TDE100, KX‑TDE200, KX‑TDE600) 

  • KX‑NCP series (KX‑NCP500, KX‑NCP1000) 

• Note: In some systems, when used with digital / IP PBX, it cannot act as a programmer / console — just as a regular extension (telephone) 

Other Observations

• Some sellers list the KX‑T7730X as having 24 programmable buttons (12 CO + 12 personal / feature) in certain “digital phone” / refurbished listings, although the standard spec is 12 programmable keys with dual usage (CO / feature) 

• It is not a standalone phone — it must be connected to a compatible PBX / hybrid system to function properly.