The D3 expansion module allows you to clearly and easily manage several extensions and conversations. The high-resolution display makes for a perfect visual interface which is easy to configure and label via the telephone's web interface or directly on the phone itself.
18 programmable and self-labeling LED keys
High-resolution, backlit black & white display
Cascade up to 3 modules (54 function keys)
Plug and play
Powered over the phone via USB connection
