Samsung Falcon DS 24D Telephone Set (Black/Refurbished)Key Features: Built in speakerphone 24 programmable keys (8 with tri colored LEDs) Four fixed function keys 32 character display (2 x 16) with three associated soft keys and a scroll key Up Down buttons for digital control of speaker, handset, and ringer volumes Eight selectable ring tones Desk or wall mountable Available in Black Only Used with DS 616 phone system.