1.44In. TFT display 128 x 128 x 64k with graphical user interface- Up to 8-Hour Talk Time & 75-Hour Standby Time- Up to 2 simultaneous calls per handset- Headset connector 3.5mm- Graphical interface with selectable wallpaper- Selectable polyphonic ringtones- Up to 8-Hour Talk Time & 75-Hour Standby Time- Autoprovision with FreePBX & PBXact Phone Systems- Range: Up to 50m Indoors- Compatible with Sangoma DC201 Base Station- Up to 20 D10M Handsets can be added to the Sangoma DC201 Base Station