Panasonic Standard Digital Telephone | KX-DT521-B
8 button, 1-line backlit LCD display digital telephone w/full duplex speaker phone (black)
Panasonic Business Digital Telephone | KX-DT543-B
24 button, 3-line backlit LCD display digitial telephone w/full duplex speaker phone, electronic hook switch (black)
Panasonic Executive Digital Telephone | KX-DT546-B
24 button, 6-line backlit LCD display digital telephone w/full duplex speaker phone, electronic hook switch (black)