Snom D3 - EoS Expansion module

The Snom D3 is the optimal expansion module for the Snom D3xx series desk phones with USB connection. The expansion module allows users who make a lot of calls greater flexibility and productivity by providing 18 programmable LED function keys with features such as line hold, speed dial, extension and presence indication. The Snom D3 with its high-resolution black-and-white display can be easily connected via plug-and-play using a USB cable. Up to three extension modules can be connected in series to expand the range of functions enormously. This provides up to 54 additional function keys.

• 18 highly configurable, self-labelling, multicolored LED keys
  
• High-resolution black and white display with backlight
  
• Daisy-chain up to 3 modules (54 function keys)
  
• Plug and play
  
• Power supplied from phone via USB port