Color Hands Free( #KCV352 + KC-MC24) Read More B/W(Black & White), with hand set (#KVM-301 + KC-D20) Read More Lobby(Gate) phone + Each House phone + Guard phone (Multi-entry Type Configuration) Read More For Single door#DP-203 + MS-2D Read More For Multiple communication #KIP-611PG Read More For Single communication #IP-201P Read More