Condition: NewGrandstream GXP-2020EXT Keypad Expansion Module Additional 56 Keys Product Description The GXP2020 Expansion Module (EXT) features 56 fully programmable buttons (each with dual-color LED) when used with GXP2010 or GXP2020. The GXP2020EXT is connected to and controlled by the GXP2010 or GXP2020 with a short cable included with the module. The GXP Expansion Module supports the traditional call features on each of its programmable buttons, including BLA and BLF. You can daisy-chain 2 EXT Modules to add 112 fully programmable phone extensions to the GXP. The first module is powered by the GXP2010 or GXP2020.Features- 56 programmable buttons- Call transfer/forward/pickup- Busy Lamp Field (BLF)- Busy Line Answer (BLA)- Speed dial for each line- Daisy-chain 2 modules for 112 programmable buttons
