A high-performance, high-resolution, easy-to-use expansion module

The high-resolution display provides an ideal visual interface. The D7 connects to the telephone via a USB cable, and up to three expansion modules can be daisy chained to add 54 function keys. The final D7 in the chain provides a USB port to connect other peripheral devices such as a USB headset. When more than one D7 is used with a telephone, additional external power is needed.

Quick summary

• Supports all 700 series telephones with USB ports
• High-resolution graphical display with backlight
• 18 freely programmable multicolor LED function keys
• Dual-angle foot stand: 46° and 28°
• Fully configurable via host phone
• 18 highly configurable self-labelling LED keys
• High-resolution black & white display with backlight
• Daisy chain up to 3 modules
• Plug and play
• Power supplied by phone via USB port for first D7 module