The Snom D7C is the most modern expansion module for the D785, D765, D735, and D717 telephones. The D7C features a high-resolution color display with a completely redesigned user interface. Connected to a Snom phone via USB, the Snom D7C adds another large screen and many useful functions to many Snom phones. With the help of the 16 physical (48 virtual) freely programmable LED function keys, for example, colleagues’ status can be quickly recognized, and the corresponding number can be dialed or a call forwarded. If the corresponding line or the LED function line lights up green, the colleague is available and can take a call.