Short info: Panasonic KX DT543 - Digital Phone - Black Group Telephones Manufacturer Panasonic Part No. KX-DT543NE-B Model KX DT543 EANUPC 50252327673232 Product Description. No. KX-DT543NE-B Model KX DT543 EAN/UPC 5025232767328 Product Description: Panasonic KX DT543 - Digital Telephone Product Type Digital Telephone Speakerphone Yes (digital duplex) Automatic Redial Yes Display LCD Display - Monochrome - Yes Housing Color Black Detailed Specifications General Product Type Digital Telephone Housing Color Black Phone Features Max. number of lines in the phone. No. Key extension module 4 Dialer type Keypad Position of dialer Telephone Speakerphone Yes (digital duplex operation) Automatic redial Yes Menu operation Yes No. of programmable keys 24 Ringing 30 Display Type LCD display - monochrome Display position Telephone Screen resolution 242 x 55 pixels Backlit Yes Miscellaneous Connections Headset plug / sub-mini phone 2.5 mm Digital Extra Device Port (DXDP) Electronic hook switch (EHS) Hearing aid compatible Yes Placement/mounting.