The GXP2000EXT module is an ideal solution for the busy enterprise environment looking to add the ability to receive and dispatch calls efficiently with the GXP2000. The additional 56 programmable buttons enhance productivity to achieve high customer satisfaction with inbound callers. Features & Benefits ?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