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Grandstream GXP2200EXT LCD Extension Modue
- 128×384 backlit LCD display
- 40 contacts on 20 programmable dual-color buttons per module
- Daisy-chain up to 4 modules for up to 160 contacts/extensions
- BLF (busy lamp field, standard or eventlist) Call Park/Pick-up, Speed Dial, Presence, Intercom, and conference/ transfer/forward and more