The Grandstream GXP2200EXT is an expansion module for the GXP2200 and GXP2140 phones, which feature a 128x384 graphics LCD, 20 quick-dial or BLF keys with dual-color LED, 2 navigation keys, and less than 1.2W power consumption per unit.
Features:
- 128x384 graphics LCD
- 20 quick-dial keys
- BLF keys with dual-color LED
- 2 navigation keys
- up to 4 GXP2200EXT per phone