Features: 18 programmable keys, 4-line,
16-character swivel Liquid Crystal Display (LCD). Full speakerphone
for internal and external calls, 3 "soft" keys automatically change
functions according to call conditions. Can receive a second internal
speakerphone call while on a handset or headset call. System
equirements/Compatibility: Works with Isoetec Digital System/Executone
Integrated Digital System (IDS™).