Polycom SoundPoint IP 670 Expansion Module (Colour)160x320 pixel graphical colour LCD 14 configurable illuminated keys Can be added to or removed at any time No extra cables as power supplied by phone Plug and play no set up required User friendly Increases the user interface of the SoundPoint IP 670 Creates together with a host phone a high performance, productivity enhancing solution for telephone attendants Simplifies management and monitoring of simultaneous calls