The Snom D7C is a Coulour Expansion Module for the D785, D765, D735 and D717 telephones. The D7C features a high-resolution colour display with a completely redesigned user interface. This module simply connects to the 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, the status of colleagues can be quickly visualised and the corresponding number can be dialled 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.